Basic EOBD/OBD2 scanners ONLY support the engine and automatic or robotized gearboxes.
The EOBD and OBD2 standard does NOT cover any other systems like ABS, Airbag, etc.
If you want more support for more systems then you're going to have to spend more money than £150.

The Launch seems like a nice kit for home use. But it all depends on the coverage.
Maybe you should try to get a demonstration of this scanner.