I've been going to group 5 motorsport for years and they have always done great work.
I couldn't afford a shop install, so I paid a friend to install my coil overs and he ended up messing everything up..
So I ended up going having to take it to group 5 to get it fixed. They totally fixed all the issues and it wasn't even that expensive. I should have taken it to them in the first place.
Overall I highly recommend group 5! They price match too!