Very good value considering the wide vehicle coverage. Received within the promised timescale, and dispatched from the UK as stated. It worked very well with my 2010 M-class, connecting to each module cleanly and providing a detailed record of everything it finds (storing details for later review or printing). It's already saved me money - displaying codes for faulty parktronic sensors, and in coding the central gateway for towing-electrics retro-fit. I don't doubt it's going to be particularly useful with ay DPF/injector problems should (when!) they prevail. These tools may not seem cheap, but, given their coverage and the research and support that goes into providing them you do get a quality tool that does the job well - I think it represents good value. Excellent tool - competitively priced - Thank-you.