Does anyone have any experience with the kts520? I see prices from $1500 to over $3000. And what's with the crappy English that is really confusing? The text below seems to be the same on every site. Can anyone explain the text below. Specifically, It could lead to malfunction self-inspect and full car circuit diagram for the car which was made after 2005.

Are these products any good? I want to program keys and program ECUs.

"Porsche PIWIS Tester KTS520 is the latest inspect equipment of Porsche Company. It could read code, clear code for all type of Porsche. It also could test, program & guard against theft according to its data flow. It could lead to malfunction self-inspect and full car circuit diagram for the car which was made after 2005. Porsche PIWIS Tester also has the function of measuring leads for multimeter. It's the necessary equipment for Porsche professional inspector.
Latest Software version: V28"