Grand Design 399TH

[450Donn]

Anybody have one?
Just helped a gal and her mom with their brand new one. Guess their going full time in the next couple of weeks. Did not get a real chance to give it close look over, but WOW is that thing big!
Hints on the good, bad, and ugly I could pass on would be appreciated.

[One Step]

I don't have one, but these Youtubers full-timed in one. Some of the things they talk about include pest control, organization, the tow vehicle (F-450), weight, and more. Very detailed. I was seriously considering it for a while. The fold-out side deck is pretty cool and unique.
https://www.youtube.com/c/KeepYourDaydreamTv/videos