It's really too bad VW's media interface for the current (mk8?) Golf R and GTi was so poorly executed, especially since, imo Audi has been so well sorted out with their infotainment, virtual cockpit and general interface. Said family member had a 16 or 17 TT-S (very easy to live with day to day save for it's size) and it was a breeze to use.
But yeah I'd say if that doesn't sound like a deal killer, then it's definitely worth a test drive. Really curious how the newer AWD setup feels from past Haldex, although not quite sure one can tell on a typical test drive. Supposedly according to many reviews the current R is step up performance wise, but does suffer from giving the driver less feedback (which is okay for said family member car shopping looking for daily driver).