I inherited my sons mk7 "Kubelwagen" comfortline 7 speed DSG optional VW18's with Pirrelli's HAd a custom sound processor amp with a custom fitted subwoofer fitted responsive great engaging driver with KILLER stereo

Hi everyone. Need some advice on a RNS510 version T offered to me from someone. He said it's the best version of the bunch (latest I suppose), has got SSD drive, faster processor, TV (?) etc.

Also the price is $800 which according to him is crazily low.

Just wondering is...