Drove a Mk6 Gti today at the dealers (in for new seatbelt).
Just the same to drive as my Mk5, if a little quieter and more remote.
The steering is still no better.
The thing that has changed is the price, my DSG five door was £19,300 otr. It's now about £5,000 more to buy a same spec Mk6.
As both will be thought of as the same car when the light and nimble (please) Mk7 GTI is shown in two years it's just too much.
Mk7 for me (or a hybrid Honda Civic type R if Honda make it in a 5 door).