Just installed the Sumo springs on my 2019 F150.
My research led me to believe Timbrens are great if you have a really heavy load hauled often but are too solid for daily driving unloaded.
I really didn’t want the hassle of air bag adjusting for my relatively light Travel Trailer, plus the Sumos are an easy install. My jounce bumper replacement bracket had a hole and bolt to add that the poly Sumo screws on to. Tack welding that in to the bracket would be a good thing. While the install procedure said to jack up the truck on the frame for an easier install, it was easy enough to do on a flat garage floor.
No change in daily driving. Have yet to haul a heavy load or pull my camper after the install.