Great tools! The impact actually removed lug nuts that were installed with a battery powered snap on impact. I did roll a car off of the jack once but that's mostly because I forgot to set the parking brake. Kinda forgot bottle jacks are a lil less forgiving in that aspect. The ONLY complaint I can muster with this kit is the doors on the side of the jack/compressor unit don't latch very well but... So what? Definitely would buy it again 100%