Yes. I've got one. Very good (but having said that Car Seat isn't absolutely top notch - in that it has a bit of a sweaty fabric, nothing more serious) but the buggy itself is brill - very lightweight, nice big shopping tray, suitable for newborns, nice and compact to go in car boots. And DS has been fine in it, and napping in it from the very start. I think it is worth getting the autobase to go with the Car Seat - to avoid unnecessary faffing around with seat belt everytime you take car seat in/out
If you aren't too fussed about slotting car seat onto the buggy, and need to get the buggy up/down steps, on public transport a lot, I would consider going for the Graco Citisport plus, as it is lighter,and a separate car seat. The Graco Citisport is also a bit lighter than the graco mirage - and is going for £30 in the Index sale at the moment.
My only silly quibble would be that the buggy tray isn't a good shape for holding stuff or for buggy toys!