We moved to the regular bath tub about 2 weeks ago when the plug/seal on our baby tub broke. DS loves it! More room to splash around, he kinda scoots around on his bottom to chase his toys, etc.
The part that makes me nervous is that he keeps trying to stand (I'm terrified that he's going to slip and fall), but we sit him back down and tell him "no standing in the bath".
Anyway, it's much easier than the baby tub.