Just took the first trip on our, new to us, 2008 SN 6400. After reading posts on this site, I did the air suspension upgrade... what a difference in ride.
I found the coach ok to drive but requires more attention in cross winds than our old travel trailer.
The only problem was the slidetopper on the large slide came open during driving when we were hit by a sudden wind. That gave me some excitement while driving on I-40. I don't recommend adding a sail on the RV...
Family liked the RV and overall we had a good first trip.
Slowly thinking of mods I want to make. First is to sound proof the cab.
Looking forward to more trips this summer.