The one I bought from Ebay was from a UK supplier, So I could have relatively easily returned it if it had not worked.
Everything is made in China now, I suspect the "copies" half the time are made in the same factory, but sold to a local supplier....
It read the codes fine, a few of the other options were a bit iffy, but for the price, it did the job, picked up on Ruud's sticky VVti solenoid. I had the software loaded on an old XP laptop