Should I buy this S4

Should I buy this S4

Hey all I currently have 4 different set ups, all using Serato. A friend of a friend is selling his S4 with a flight case for 300 as he is pressed for money, I’ve never used traktor before but wouldn’t mind learning it. Do you think this is a good unit to pick up used with a case for 300?

Sounds like a good deal to me, as long as everything on the S4 works and he unregisters Traktor so you get the software too.