I did and would do it again. The banging and rough ride are non existent compared to the original shocks. I can't compare Bilsteins because I haven't had them on my coach.
I would not mix and match different brands to save a few dollars. Rv's cost money to operate and are a totally different breed of vehicle and require certain levels of care. Go cheap then do it over, me thinks.
Depending on if i am pulling a trailer or just hanging my Honda Ruckus off the hitch, I adjust the air pressure in the bags and that improves the ride also. I simply use a bubble level for a starting point then go from there.