In my opinion, not a lot of use. It would be able to read and clear codes from some of the engine and auto gearbox stuff, but not a lot else. Certainly you could get the same kind of functionality for a lot less, but you really need a T4 (Testbook version 4.Computer Diagnostic System) to doanything much more.
Seems to be a comprehensive , BUT ....generic Kit ..... so won't have the sneaky t4 type access to the areas you really are probably looking for ??
Chris
Got one for Me , Then one for her, and now a big one for me again, All BLOO! Well saves on the touch up paint, Now Number one son's Spoilt it all by getting a Firefrost 1.8T