It's wide.
Very wide. Didn't fit through my old front door or through quite a few shop doors.
It's also heavy and doesn't fold down very small - it only just, with a lot of experimenting, fitted into the boot of our Citroen Xsara and took up most of the floor space of our Vauxhall Zafira. I had to keep it in the car or garage because it took up so much space in the hall cupboard.
The small front wheels bend really weirdly if you go down curbs and feel as though they're going to snap. You have to go down on the rear wheels which isn't as simple as it sounds because the handlebar comes out a long way so it's hard to press down on the back axle. Also, the handle height adjusts but if you press too hard on it (to get up curbs, etc) it collapses down to it's lowest height which is really irritating. It wouldn't be any use on anything other than smooth surfaces and once you put a toddler in it it is very, very heavy and hard to push. My dcs were only 16mo apart and neither of them were very large for their age but by the time ds2 was 1 it was so hard to push and manouvere.
The seats aren't very wide either - dd at 16mo and togged up for winter was a snug fit. By the time she was over 2 she really didn't fit very well at all.
That said, the option of having the carrycot for a newborn is great, ds2 was so cosy in it and we also used it as his bed for daytime naps. I also liked the fact that the seats could face either way, although they have to be reclined one notch if they're rear facing because they rub on the wheels once you put a toddler in them.
Personally I wouldn't get it again. I liked it but there were too many niggles with it.
The iCandy Pear looks like a good option if you want both dcs to be rear facing and/or have a carrycot.