Hi Nic,

I have an adiva sport pram. Its been great so far- I really like that it converts from a bassinet lying down position to an upright stroller position easily, which means you don't have to purchase separate parts which is the case with other prams. It also means that when your bub is older, you can still lie the pram flat for them to sleep comfortably if you are out somewhere. It is also very easy to reverse- so baby can face you or face outwards- i use this mechanism regularly depending on angle of sun etc.
I don't find it heavy to push at all- in fact I find it incredibly light weight and easy to steer. My only qualms would be that the bassinet sits rather low (I am 5.7 tall, however) which doesn't allow for much space to store stuff underneath the pram when in the flat position. Other than that I've found it to be great. It has the same functions as prams like the bugaboo- at a fraction of the cost.
Good luck with your search!