Not bad! It's not exactly what I was expecting, but it is fun to play. It's five years old. It's cool for a drum machine, but it gets boring after awhile since it's nothing more then rhythm patterns. I'm sure it will be more useful with the EA-1 or even the microkorg. It's different not having a keyboard in front of me. The one good thing about it, is that fact that you can intereact with it. I need to look for othet peices of gear that I can interact with. Like the MS2000 or EA-1 or even the microkorg. I have not tried it with my Juno-106 since the Juno is analog and the ER-1 is digital. For some reason analog and digital do not sound very good together.