I've had the BopPad for about a month now. Its feature set is pretty complete - it does all that I need it to do and more. However, the build quality is a different story. Two key points that I want to mention are the four zones and the software editors.
1. It turns out that on my unit different zones have different sensitivities, which means that when I hit them with the same force, they produce different velocities. Not great. After I talked to the KMI support, it turned out that it is what it is, and the only thing that I can do now is to try and compensate for that difference by manually adjusting the sensitivity settings of the zones. Needless to say, that this is just a workaround and is very tedious at best. The other option is to return the pad. Also, there’s this ‘Unison’ mode where the whole pad becomes just “one zone”, so to speak. But to me it seems that this is just a shortcut for applying the same settings to all four zones, so that they “feel” like one zone. In reality, playing in this mode and hitting close to the four zone’s borders produces rather strange results. Don’t expect to play this pad like a “single drum”, as I did. Even though it looks like a drum with a “single head”, it’s just four pads next to each other.
2. The software editors (both web and desktop) just hang from time to time, especially when installing a firmware upgrade. You just sit and wait not knowing what is going to happen, if anything at all. A dangerous moment for a piece of software to stop working.
Definitely wouldn't buy it again.