i´ve used them, and i really loved the models, but there were some things that i didnt like... 1st tha animation of the hair, its really extrange (i know u didnt make animations for this model-pack but i hope u do xD ). the other one is that USSJ needs more buffs, on legs and arms mostly (i think its buffed as your SSJ3 goku...and it has to be much more buffed). And last one, i know that i´ve post this before, but i think ssj2 hair and cloths should be lighter than ssj1 and normal form, the same way u did it with goku, and the same way it apears on the show.
No more critz, still best model i´ve played with =)