We have a 2015 ACE 30.2. Added the SafeTPlus, a Henderson Track Bar, Cheap Handling Fix, and did an alignment all within days of purchase. DH said it handled fine. Until he hit a day of sustained 35 mph winds with gusts and 4 hours driving in it. It was not pleasant!
I asked my DH if he wanted Sumo's, as he never would manually adjust the airbags I had installed on our last MH. He said sure, I had them put on front and rear. On our last camping weekend we ran into a monster storm with winds and high gusts and torrential rains, and we never left the lane. Felt the wind, but were not pushed around. So the Sumo's really helped.
Now all done with suspension upgrades. Rides as good as a house on wheels is going to get.