I got a used stacking side loader washer/dryer early this year, Whirlpool made Maytag (washer made in Germany, Dryer in USA) from '08 and I like them better than my old conventional set. The washer did throw an error code once a few weeks ago, but the voltage was a bit low across the whole house. It was built in the era of bad capacitors, So I might have a look inside of it when I replace the floor in my laundry room (and have the dryer off of it)
I'm not worried about the door seal in mine, as it doesn't run the water that high. also the lack of an agitator is great for bedspreads and stuff