I've goa old style quinny buzz the seat is huge! My 2year old fits perfectly in it, but my 7month old looks tiny. I'm thinking of buying a oyster, just googled it and got some bad reviews :(
I don't like the quinny because I find going up pavements quite hard with3wheels, and a buggy board attached.
If anyone has had both would loved to hear your opinions or one or the other :)