I use Parkway, not had any problems - cars been in for a service and a couple of warranty jobs and I have been happy so far. OK so once they didnt refit the boot trim properly and had another go but its not that badly done just not flush as it was originally - important thing is they did replace the rear wiper to fix the problem!
Due to book it in this week actually and it will be going back to Parkway so cant say much more than that. Service guys are decent chaps which always helps.
Would have replied sooner but the thread title didnt really say much about the subject...