Hi, Our boy is 14 months and still very comfy in the bugaboo bee, though he is quite skinny. I chose the bee as it was one of the lightest ones you can use from birth, but I don't see us stopping using it any time soon. I think it's a great pram, didn't bother with a cocoon, just used blankets and have now got a clare de lune footmuff- much cheaper and fits perfectly. There was a problem with the breaks, they may have fixed that on the newer ones, but the just sent us an attachment to make them work.