After speaking with several garages in NW London one Friday afternoon, none would take delivery from the RAC relay of my broken down ML, an ECU issue and a big car. When I spoke with George and Alex at OGS the difference in customer service and knowledge was almost too good to be true. I'm pleased to report is was 100% true, they were good to their word and very fairly priced and some of the nicest people I've ever meet in the car repair business. Their professionalism and integrity might explain why they're such a busy little workshop, I guarantee you won't be disappointed in the quality of work, their knowledge is off the scale and the price is excellent.