Anyone else find the dealership wait times for McLarens just ridiculous?

I've had my 600LT for about two years now and honestly, I absolutely love the car, but the service experience has been seriously testing my patience lately. I booked it in for a routine annual service over three weeks ago and the earliest slot they could give me was still a month away, which is just insane when you consider how much these cars cost. On top of that, they quoted me a price that made me do a double take, and I'm starting to wonder if I'm just paying for the fancy coffee and nice waiting room rather than actual mechanical expertise. I've been speaking to a few other owners at some of the local car meets and they've all been telling me the same thing, that there are actually independent workshops around that are way more flexible with bookings and significantly lighter on the wallet too. I'm seriously considering making the switch but obviously I want to make sure I'm not compromising on quality, I need to find a  Genuine McLaren Specialist in Abu Dhabi  who has access to the proper diagnostic systems and actually knows the quirks of these cars, because they're not exactly like working on a Japanese hatchback. Does anyone here have first-hand experience with an independent place that they'd trust with their pride and joy? I'm mostly concerned about the suspension setup and the gearbox calibration, I don't want to save a few dirhams only to end up with bigger problems down the line.