For the little time that i have had the Akai MPD218 it has served me well when making beats, helps to be able to collect all my kicks,hats,snares, and any other sample i want all in one pad.
Velocity-sensitive fat MPC style drum pads, plenty of customisation options, multiple pad/encoder banks and reliable performance make this drum pad my favourite to play on. It's a simple bit of kit, it does what it says it will do - pretty much as well as it could, so I've found it to be an excellent addition. Too much vibration on the surface underneath the controller itself (sometimes caused by playing too aggressively) can cause some trigger issues, where a random pad will also be triggered as well as the one you want, but this is easily solved by just putting it on a more sturdy surface - it's not a controller fault really. I also haven't found a proper use for the endless encoders - to be honest, I'd prefer low profile potentiometers, as found on the Akai MPK Mini MK2, but that's just personal preference really.