Well, I tried the SE 1.4 TSi manual 5dr. It was a good drive, nothing special compared to the Mk6. It has different suspension settings, but isn't as communicative as the (Mk6) GT TSi's lowered suspension and firmer ride/handling/steering.
The roofline is lower (decreased headroom) and the door mirrors are narrower, plus that strange front quarterlight (distracting when you see roadmarkings through it!).
Electric handbrake (something else to get used to) is hit-or-miss - you have to keep both your feet on the pedals if you leave the car in gear before switching off.
Interior is pretty much the same layout as on the Mk6, the centre console is probably the biggest change. Nothing too radical, the computer and cruise control set-up has changed.
I also sat in the GT TDi, it is basically the same as the Mk6 except for the mock-carbonfibre gloss inserts. The matt chrome dial rings have been changed to shiny chrome rings, which is a bit too blingy for me. Rear view mirror is auto-dimming, but the privacy glass is optional (which does away with the need for auto-dimming mirrors) .
All-in-all it is a nice car - but not a vast improvement over the Mk6 dynamically. The 1.4 GT TSI 140 (top non-GTi model) with ACT is a step forward in technology but a step backward in performance.
I rate the Mk7, but prefer my Mk6 (GT TSI 160) to be honest. Will wait until Listers have a Mk7 GT TSI 140 for me to test before I get my cheque book out!!