I think there are still some gaps in the repo - Apache isn't complete, no lomanager, no tunctl, no audacity. Maybe there is a problem compiling some of these for 64 bit. With only one section Synaptic is really fast though.
Kwin works on my desktop, but not on my laptop (mobile 4 Intel graphics - complains GLX is missing) in 64 bit. Both work in 32, so something's not quite right there, but it is shaping up nicely.