In doing my research for a hybrid ,3 years away :( , some things I didn't like about the Jayco vs Rockwood roo (in your case maybe the 21DK, same weight,close in price)
1. 13 inch tires on Jayco VS 14's on Roo
2. 5 cf fridge on Jayco VS 6 cf on roo (for me coming from a popup this is important to me)
3. Ducted air on Roo....unsure if the X20e is
4. 80"beds in Roo VS 78 in Jayco
5. 6 gallon fresh and 8 gallon black larger tanks in Roo VS Jayco.
Not to say Jayco isn't a great trailer just some things I noticed that are pushing me to Forest River.
Jayco does have a longer warranty