IMHO that would be too small for us. We did 3 years of full timing/traveling in a 39' fiver a few years ago. It had three slides, king bed, and a washer/dryer. Our current Challenger has almost the same livability and we are thinking it is too small for extended full timing.
I think if you are full time and not traveling much where you can have some stuff in storage, smaller RVs can work. If you are full time and traveling all over constantly then for 2 people you need as much space as possible IMHO.
Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO