Bought ours from a Mazda dealership just over a year ago, so thought it wise to get a LR garage to give it a check at the outset. Found RCV (an independent) who undertook the overdue 4 year service, and have since been back for an MOT and today they've dealt with the 5 year service. Can't fault them in any way - very courteous, professional service from everyone I've had dealings with.
They're about 30 mile from home, as against a main dealer around 5 miles away, but the saving in costs and the service I've received I believe are worth the journey.

for RCV. They couldn't recode my 2nd hand radio - no charge after an hour or so of trying. (I have since learned that it cannot be done, at least by a dealer. It's an anti-theft protection. You have to buy new.)

The changed my cam belt etc at 10 years, no issues at all and at reasonable cost.