Hi
I have one.
I don't know - I suppose they are ok but I think it depends on the life you lead. I found it ok when i was out with ds on my own and totally hands free as could tighten and adjust, but when out with dd in her buggy or carrying shopping bags i found it a bit of a hindrance to be honest (We do a LOT of walking). I almost wish i had a just bought another Baby Bjorn.
I usually have 'stuff' going on with my hands (other children etc) so i find it feels a little unstable.
I also felt it didnt support his head to well in the upright position when he was little, but now he is older it seems fine. To be fair Amos loves it, always seems really comfy and content so maybe is just me.
Also dh will not wear it as he thinks it is too feminine.
I am considering buying something else, although HATE wasting money so i may make do.
Hope that helps. It is nice to see them cosy wrapped up in it though.