The AT101W's PCB is nice and thick, and I like that they tried to put resist between places solder bridges were likely to form. The assembly approach, OTOH, was a disaster (folded over, and thus difficult-to-desolder switches).
I love the Leeku concepts too-- it means you can have a custom board without having to hit a narrow group-buy window for a custom-made case, or spend as much as a new Realforce 103 on said case. They also managed to deliver on the "MX and ALPS on the same PCB" concept.
Part of me thought a Leeku 8200 would be the obvious next step, but then I realized that real 8200s have full-rollover already, so it would be a hard sell except for the "LED crowd" and the ALPS fans.