Got my car serviced at JEM in NW London today, full service (100K miles, though my car has only done 60K).
I supplied the oils and oil filter. Got off to a bit of a bad start when JEM realised they hadn't thought this through properly, since I'd supplied new oil for the diff and gearbox, and they weren't sure how they could get those in from my supplied bottles rather than their ready-filled pump drums (?!). They showed me the diff filler and I could see what they meant, although I thought they might have some simple device for that sort of thing. But we sorted that out and agreed that I could pay half the usual price for their oils.
Other than that it was fine though. They have a nice waiting area upstairs where you can watch the cars being serviced, with tea/coffee, a TV and various papers etc. They obviously have a lot of Japanese customers because there were more Japanese newspapers and magazines than English ones ! I could have had a courtesy car, or my car collected and delivered, but I chose to wait.
They were busy working on various cars, mainly Japanese, and a GS300 went up onto the ramps after my IS200 was finished.
They were quite complementary about how clean the underneath of my car is. That's the second time a garage has commented on that, maybe I should start showing my car off upside down
Cost was £184 (for their "C" service, without an air filter change or spark plug change) plus £15 for the gearbox/diff oil.