I think the site is fairly good. Always changing and improving. I like the app too and how site to store knows when I park in the parking lot and automatically checks me in for pick ups. Pretty handy!
Repairpal is a site that charges shops and recommends only shops that pay them. That doesnt mean you are getting a good shop, do your research, ask around, talk to local friends and family. Most shops will give you free info about them, their services, background, shop tours etc.