I love having a washer/dryer on board for past 13 years, but ours is a combo one and the clothes tend to come out badly creased and hard to iron if you over dry - better than nothing for sure. Next RV must have a stacked pair for us though we've decided.. I can see both points of view when all is said and done, but we've just had bad experience of what's gone in commercial machines before us going back 13 to 16 years ago,, and only use them for our quilts or bulky items after a very thorough visual and odour inspection.
We find it more convenient and a lot cheaper than using commercial ones personally, but to each their own.