Hi Jan!!
I LOVE our stroller! I have used it since around November, and used my pram once in that time (having said that I HATED my pram!!!) My stroller is a Maclaren Quest - weighs just over 5kg, I can fold it or unfold it while holding Izzy and it is really narrow and so easy to manoveur... It is expensive - around $230 but if you don't want to spend so much Im sure you could find a cheaper stroller that suits your needs. One thing that the Maclaren doesn't do so well in this style of stroller is the basket under the seat, if Izzy is lying back (it can be layed back - not flat but enough for her to nap which I also love!) but I can't get to the basket, and even if she's all the way up then it is still a bit tricky to get in and out of!
Good luck deciding and I would definately recommend one for the ease of those quick trips to the supermarket etc!