If I'd had a Gti in the past, I'd probably have ordered the GTD 170 - kind of the best of both worlds. Haven't had a Gti and, at 43 years old, I found myself wanting to put that right - years ago, my wife had a 100BHP Tdi and we both loved it so I imagine that the 170 Mark VI is fantastic - but maybe it's my age, just that I fancy a 'cool' and out and out fun car - Gti it is....
Enjoy in good health, whatever you do.