I've had a number of AH analogue desks, I still have three, and they've all been excellent. There has been the odd little problem but always easy to sort and they've had heavy use over many, many gigs. I've no experience of the QU series but have only seen good reports around the forums. Are you speaking from personal experience about their problems? I really like the look of this new desk and although my DL has been pretty good overall, I'm starting to tire of it's increasing flakiness.