Hi, share my experience here. I bought VVDI2 Commander from chinaobd2.com last month. I have used it to make many keys for VW, Audi and Skoda cars, and it also correct mileage well. Following are what I tested OK for your reference!
I added these keys experience with VVDI2 Key Programmer:
Added a key bcm2 on a 2013 Audi A5 worked flawlessly.
Add a spare key Audi BCM2 by OBD worked fine.
A6/Q7 EZS Kessy:
Added a dealer key (remote source from the dealer) without issues, seemed to read everything properly but I had a working key to begin with.
Audi A6:
Tested with A6 read kessy working, learned new key
Skoda Octavia 2006:
Got CS & PIN, programmed key fine.
VW Passat B5:
Pulled PIN and programmed key ok.
VW Passat B6 2009:
Pulled PIN but couldn’t get 6 bytes CS, needed comfort dump.
VW Transporter T5 2006:
Pulled PIN Programmed key, no remote programming.
I use VVDI2 to change mileage on following cars:
Audi A4 2006:
Mileage correction success
2007 Audi A4 B7 RB8 crypto
Mileage correction ok
VW Passat B5:
Corrected miles ok