ive had one for about 5 months now, and i can safely say ive been pretty happy with it tbh, nothing has gone wrong with it and its really good connection's wise really easy to hook up to my p.a system, monitors, laptop, 2 decks, laptop soundcard for recording and a sub output if i had a sub.
i am considering upgrading in the future tho but thats more down to me being a bit bored of it and likeing the looks of the allen & heath mixers =]