With only 4 good sounds, and a very specific personality, it can be loved or hated. I personnaly changed my BOSS DR 220 E for a BOSS DR 110. There is another 220 model : the 220 A with accoustic sounds. Bad ones.
Comments About the Sounds:
These are digital samples, very flat and hard. Typical from midle 80's digital drum sounds.
(Thanks to Unaussprechliche Kulten for this info.)
and Pieter Christiaan Wouda for the pic