I think it's a matter of preference and what your space allows. If you're asking, I guess either is an option for you. We had an all-in-one unit in our Momentum when we lived in it and thought it was great. We could start a load, head out for the day, and when we came back it was dry, or do the same thing before bed. With separate units you obviously need to be there to swap loads. The combo units have smaller loads, but you learn to adjust. We are a family of 6 and did fine with a combo unit.
Sent from my SM-G950U using Tapatalk