i have 2 sets of them. one on a warrior and one on my blaster. imo they are better than stock.when i bought mine a year ago they were$90. they are air shocks. they have a vlave stem type thing and you can actually fill them with whatever air pressure you want to achieve the ride you want. if they bottomed out that may have been because you didnt have air in them and were riding on all spring. i go off jumps that get you 15+ feet in the air with them and they are definatly better than stock. they're good on trails too. its your choice but i think they are a good deal for what they are. also they wont lower it. they keep stock ride height on a warrior and raise a blaster about 1/2 an inch. you can adjust how high the ride height is though so you can make it how you want.