Not bad for a CPO
Putting in the zip of the dealer; the Edmunds site comes up with (so about $2K less than 'average'); their site deducted about $1,400 due to the higher than average mileage:
trade-in $21,884
private sale $23,325
dealer $24,603
CPO $25,855
Ask them for the service records, see what's the next service expected, etc.; perhaps they can add the next maintenance 'free'. I've been very happy with our '13 VR6 T-Reg Sport w/Nav (appears to be the same package on this one) ... ours still looks new after 33K miles and no issues at all; this one looks pretty good (although the black interior trim appears to have lots of scratches; not uncommon but shows its age now). Dieselgate has brought all VW prices down (taints the entire line even though this one is a gasser) so they may even have some more wiggle room ... good luck!