i'm a long time user of carrara 1 (not intensive) and have been wondering now if its finally time to upgrade to ver3/4

i've been testing out ver3 at a friends on a small simple animation project and cannot believe the bugs! nothing works properly in the animation section. random animations appear between key frames, speeds are not consistent using the motion path, groups and subgroups dont work properly...what gives? is 4 anybetter?

is it just me? were on a mac os-x what should have taken me a couple of hours is now taking me over 8 and i'm still not done.....!