I didn't use one with DD1 but found a change table a god send with DD2, I have bought one that has a bath underneath this time around ... I was looking at the chest of drawers ones but the way our house is set up this in built bath is going to help me a lot.
I guess it's all just trial and error figuring out what works for you and what doesn't, if you do buy the one with the chest of drawers underneath then it won't be a waste (IMO) if you decide the change table part isn't for you because you'll still have the drawers