I've tried 3 of the best places in SoCal , let me give you my insight
1. Long tran
I'm actually surprised, they use a place up the street from them I believe. My car handles so good right now so solid overall. I'm running this alignment now and LOVING it.
Darren def knows his stuff, however it's a pain in the ass getting an appointment with him. I equally felt the same performance using Ltbmw and westend. However it's rated at number two because of distance from me and getting an appointment
I've read a lot of great reviews about his alignment skills however for me it wasn't as great as I expected. The car felt lose and didn't have as much grip. I drove 55 miles which was a pain in the ass. I felt very disconnected with the car and on the freeway it was pulling to the left. I didnt want to drive 55 miles to get it fixed.