Not used CW for service (not a BM owner) but visited a few times and tried a couple of bikes out, always helpful, friendly and not pushy. My mate, a long term BM owner, always has his bikes serviced there, rates the service and the mechanics, gets a loan bike as needed.
I think they used to regularly win (or get close to) dealer of the year or similar in one of the monthly bike mags going back a few years.