I had no choice but to get a stacked set up.....
I've had no issues, washer on bottom and dryer on top. My washer does make more of a rocus with a dryer on top, but could be the echo of such a small area and weight on top.
The only PIA is the fact that if you keep your washer closed after a cycle, they get mildew and moldy on the inside. Essentially can't close the front door for a day after a load. Needs a good air dry.
These are much more efficient in all aspects than the standard top loaders I've had in the past.