Very surprised with the Quality, bought for my g6et with the goal of increasing cornering performance. I had expected to sacrifice comfort and deal with the downsides of a lowered car etc however I was very pleased to find I was able to keep the car close to stock height and the comfort is actually better than it was with the stock setup. Handling has significantly improved, I no longer bottom out going fast in the mountains and they're comfortable can't recommend them more. I'm sure they would be capable of going very low if that's what you're into as well mine are set at pretty much max height. Can't speak to longevity yet however they seem like good quality out of the box and I suspect they will last a while.