They are fine for anything that doesnt require specialist Nissan knowledge which is basically anything that doesnt need the Nissan Diagnostic equipment. Servicing, brakes, clutches, aux belts. Its pretty much all the same on any car. Better off with a good inderpendant who knows how to do these things than some spotty oik that claims to be a Nissan specialist, when all they service is Micras day in day out! As I say, SJB are VAG (VW, Audi, SEAT, Skoda) specialists, so they have the computer for that stuff, and are highly regarded on the respective message boards for those makes. Just as TGM Sport in Fleet are Honda specialists but know a lot about the Zed too