ive got a 1.4 match and i love it. its not as nippy as the 1.2 tsi but im not really too bothered about speed, if i was i would have got a gti
However i wouldn't say its slow, it pulls well when i need it to and on my last tank of fuel i managed to get 44.3 mpg and 370ish miles. I would also agree that out of all the levels of trim it offers the best value for money !
with regard to ride comfort ive got the 16" knight alloys on and the ride i think is superb. i would say that i suspect anything bigger would start to affect the ride a bit.
hope this helps and good luck with the new car.