In reply to erc1:
the two top end rolls royce type models seem to the deuter kid comfort 3 and the top macpac one, not sure the model. dan bailey did a great review of the deuter one, which along with wider availability and silly go outdoors prices at the time persuaded me to get the deuter. when still comparing the two it seemed that the only difference was the macpac had a slightly larger storage compartment (30 litres vs 25 in the deuter), but now I've got the deuter the main disadvantage is the sheer size of it. pretty mahoosive, when adding onto all the other stuff required for a family holiday it becomes difficult to fit in the car! whereas the macpac one, when i've seen others using it, seems to be a smaller unit which has to be an advantage. i live in a small terrace house as well, so again storage space is at a premium, the deuter one takes up a fair bit of space in cupboard under the stairs.
other than the size it's high quality though, great wind/rain cover. don't really use it that much tbh, last time my little toddler just wanted to be on his own two feet, need to give it another bash really.