I would say "It depends on the camping surface" When parked on a good solid surface you're pretty solid with the Level-Up System. We use our washer every other day, and you get a little vib when it first starts to spin, but nothing serious. Last weekend we were camped at a Fairgrounds on sand/dirt and there was a lot more vib/movement, but still better than our previous TT. Give it a try first as each person feels the movement differently. For us, we carry enough junk around so we don't need more.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top