Choice of washer and dryer

[dmascheck]

Planning on adding a stackableipi washer and dryer to our King of the Road trailer. I’d like to know what brands and models people have had good experiences with over the long haul.

Any opinion on ventless dryers? Most I’ve seen have not be favorable.

How are the joined units? I noticed Whirlpool has a combined unit. Anyone used one? Good, bad??

What other alternatives for a vent in the wall? I have no vent and worry about cutting a hole in the wall or would you cut a vent some other place? Route a flexible pipe some other way??