I bought these primarily to align the truck when towing as my 2006 Titan has an alignment kit. So far these are excellent airbags. Installation was fairly easy, although I would have done it differently if I had to install it on a different truck. I would remove the bags from the bracket and then line up the two brackets (one on the frame, the other on the spring) before drilling the holes. I followed the instructions and it was very difficult to line them up when squeezing the bags. So my brackets are a bit off. Otherwise a fairly simple structure. I have a bedside table so I only have air valves in it, everything works fine. I also had a small leak but it seems to have been fixed by tightening the valve that goes into the bags. Now for the ride quality. With an empty truck and 10psi of pressure in the bags, you don't really realize they're there until you hit a big bump. When I go over speed bumps, the rear of the truck bounces very quickly due to the pockets compressing and temporarily increasing the spring rate. They also seemed to raise the back of the truck about 1/2 inch at only 10psi. They're great at towing. No more bouncing over big bumps in the road and the truck feels incredibly stable on the freeway. The only problem I have is that I now need a trailer hitch. I recommend it to anyone who hauls or transports loads.