If I invest in stackable units, I'd rather just go with two separate units. Part of the attraction to the combo units beyond the space saving is the ability to just throw clothes in, and collect them ready to fold sometime later. My concern was that the comments in the thread linked above indicated the combo units didn't do a good enough job though. If thats still the case, I'll probably just end up renting a set from the apartments till I move out into my own townhome, and reevaluate them again in a year.