Bought it last weekend as needed to get one quick and it was a dawdle to set up and it hooks up to laptop easily enough. I havent used it much but been through all the systems and it seems to do everything. Mine is a gems car and I think that the newer the vehicle the ore info you can get. It works on car model so the one I ave will hook up to any p38 for less than 300 quid it seems good to me.
I reset adaptions which was sadly overdue and was able to cycle the blend motors etc and identify it was temp sensor by clock so it saved me a pile of time. The live data was useful in that I was able to graph the inlet temp and the coolant temp on a run top see what was going on.
Llambda output in volts or graph so good info there . Also most fault codes come up and a text explanation
I have no experience of Black Box so cant compare anyone passing happy to hook up