Halfords autocenters have nothing to do with the retail store - so don't let the reputation put you off. They bought the Nationwide Autocenters brand a few years ago - who, IMO were one of the better chains of fitters and Halfords Autocenters are still fine. I'd certainly take my car there before Kwik Fit etc
Long time ago now (late 90s/early 00s) I took my car to a nationwide with a half price voucher - they put a screwdriver through my cv gaiter, loosened the exhaust to manifold clamp, and moved one of the headlights. All things I had checked prior to the test.