I just bought a Qu Pac, had a Qu16 will all the features of the Qu Pac 32 with an addition of 16 faders and channels 17 to 32 being on another layer it would have made the final decision a little harder. In the long run for my needs the compact size of the Qu Pac is what works for me.
I posted this before, I think the new Qu SB would be very use full if it could be a dual purpose unit and operate as both a mixer unit or a stage box like the AB168. For larger shows it could be a stage box and for smaller shows if could out as a mixer unit.