A quick comparisson of the Solitude 320X & my Alpenlite 34RLR revealed 2 things that stopped me in my tracks. Both the Solitude & my Alpenlite have virtually the same dry weights.
The Solitude rides on 2 6000# axels. My Alpenlite has 7000# axels & 8000# brakes.
The Solitude has only a 54gal fresh water tank. WHERE are you going with that? The Alpenlite has a 100gal fresh water tank.
The Solitude may be good enough for short weekend jaunts to the local CG but it sure is not built & set up for the rigours of long distance traveling & anything more than a couple days without water access.
Looks pretty but falls down on those 2 important but unseen items putting it solidly in the midmarket group.
JMHO.