*Updated - I learned a few things over the last few weeks and I wanted to reflect that below*I had been looking for a while at this as a possible option as a midi controller for my HX Stomp. Currently among the HX Stomp community, the general consensus is the MC6 MKII is the gold standard, but it costs a significant chunk of change and probably does more than I’ll ever need. The DMC micro is the other really popular option, but I wasn't sure if the smaller two button arrangement would work well for the way my brain works. My primary interest was for a solid midi controller that could handle the Stomp's looper (I’m not a fan of one button) as well as some preset changes and additional Stomp control. I'm happy to say that over all it does this, though it does have some baffling limitations that I will outline in more detail below. Nevertheless, for the price it is a solid choice, and it can even control PC programs that are compatible with midi (such as HELIX Native) which is another big plus. Ultimately, if your primary goal with a Stomp, or other device, is preset changes and CC changes at a decent price, then this will work VERY well. For my current setup, I have a dual expression pedal connected to the Stomp to control volume/wah and the toe switch on it cycles through footswitch modes (something I wish the Midi Commander could do). I use the HX Stomp primarily in snapshot mode, and then the Midi Commander has two buttons for the looper, preset control, and two additional buttons that I attach to specific Stomp boxes or other parameter controls. It works VERY well, but once I came to understand what it COULD have been with some additional programming tweaks, I couldn’t help but feel a little disappointed. See below for more detail on some of the limitations that keep it from being 5 star:Caveats:PRESETS - The device will only do up to 36 preset changes for the HX Stomp (or any custom midi setting) UNLESS you set some of the 1 – 4 buttons as preset control, but even then it will max out at around 88. This is perhaps the most baffling and disappointing decision on the part of the designers. Many midi controllers with fewer switches can do well over that number. Since numerous high tech midi controlled devices can do well over 100 presets, and since the hardware can allow for it but the software can not, this remains a significant head scratcher. Initially I also couldn’t get my controller to let me use all eight buttons for CC control, but upon a reset a day later it seemed to work fine. I haven’t run into that bug since.CC Values - The device has FIXED CC values and will not allow you to input your own. The practical meaning of this is for devices like the HX Stomp, you won't be able to control snapshots or cycle through the footswitch modes (the biggest bummer for me). You can cycle through footswitch modes if you go into the HX Stomp and set the FS5 switch to do this, and then have the Midi Commander emulate the FS5, but that has other trade offs that make this solution a compromise at best. While this limitation is not as big of a letdown as the preset issue, it is also one of those features that a software update COULD allow it to do. It already has the most difficult aspect of all for a device to pull it off - the form factor. Giving it this option would open up a lot of possibilities!EXPRESSION PEDAL: The HX Stomp has a funky and somewhat annoying expression pedal design of its own, so I wasn't necessarily surprised that the expression pedal I bought for it wouldn't work on the Midi Commander, but it was still a bummer, and I've seen other posts on MeloAudio’s forum that indicate that other users have run into expression pedal problems. Melo Audio does support some obvious ones that you can find in their manual, and they design their own as well that should work, but it's still a bummer that you can run into issues here. I would REALLY like to have the Midi Commander take my expression pedal so that I can attach a dual foot switch to the HX Stomp to handle some of the controls the Midi Commander won't (like footswitch mode change - since Midi Commander can't send customized CC values). Still, it does have TWO ports for expression pedals, so when they do work, that is a nice amount of additional control.FIRMWARE UPDATES: The designers of the device have repeatedly hinted that they are planning updates to address the inability to send custom CC values, or to make more expression pedals function with the device, but nothing ever seems to happen here and there are no instructions on the device or the website of how to check for firmware updates. Again, the hard part about the Midi Commander is that it is VERY close to perfection, and if the device is capable of software updates like those described above (because it’s true, I didn’t build the thing and I don’t know if it really can, it just SEEMS plausible) it would only make the device SIGNIFICANTLY more of a contender in the midi control area.POWER PLUG/BATTERIES: It would be so nice if this had a standard 9 volt power plug port. As it stands, it has a USB power plug, which since most of the guitar gear world probably prefers to go the route of power supplies if not using batteries this was a bit of a miss to me. It does allow you to use rechargeable batteries, AND will even charge them for you in the device which is nice. Once charged, they last for many hours which is also a plus. I did get around the adaptor limitation buy buying a polarity reversing cable (to flip it from center positive to center negative since that’s what most pedal board power supplies are) and my particular power supply allows for low 4 – 5 volt options which seems to run this perfectly. Finally, a simple USB/to 5.55 mm cable adaptor took me the rest of the way home, but it was a bit more work and money than I would have preferred.The Nitpicky: The rubber feet on the bottom of this feel like they’re pretty much welded in there. I wanted to remove them to make it easier to attach them to my pedal board, but at the same time I wasn’t interested in creating any sort of gaping lumpy bottom to do this so I eventually backed off. It would be nice if they’d just had simple easy to remove – and reattach – rubber feet designs of many other pedals out there.There you have it. If, knowing the limitations of the device as outlined above, it still fits your needs, then my recommendation is to jump on board. It is still a powerful AND affordable device, but with a few quirky and perplexing weaknesses. I am happy I bought it, and particularly as an HX Stomp user, it has opened up more power and control on the Stomp than the base unit on its own is capable. Especially in regards to my main interest in using it (tapping into the looper) it excelled at better than I’d hoped.