I have got a quinny buzz for dd who is 10 months now. We got the whole works last year from the glasgow pram centre online and it was loads cheaper than anywhere else and they sell all of the accessories so we got the shopping basket, the cosytoes, the parasol, the car seat, the buggy, the raincovers and the carrycot.
I love it although it is quite bulky but luckily fits in the boot of my Honda Jazz without me needing to take the wheels out. I've never used the buggy seat in the most horizontal position as it didn't look right somehow although I'm sure that it would have been safe. When she was very little we used the carrycot and then moved to the buggy seat in the medium reclined position.
We have the 2006 model and one of the advantages it that lo can face mum or face outwards in any of the three reclining positions on the buggy. I'm not sure if you can do that with the 2007 model.
You can collapse it with the buggy seat attached if you have it forward facing but as we always put her rearward facing we tend to detach it and put them in the boot separately.
Dp likes the adjustable handlebar though occasionally I wish that I had separate handles to put shopping on, this is silly of me really as when we were looking for a pram I vetoed ones with separate handles as they made me feel like I was on a cross trainer at the gym!
We took ours on holiday to Menorca in September and it went in the hold without any problems.
In short I really like it and will be hanging on to it once dd has grown out of it for any future los that we might have.