Hi there! I don't own one, but I borrowed one with my first. I would like one for the next little one.
They are comfortable and you can feed bub in it. Its a kind of stretchy material so you can move it around and bubs is still very secure. The only drama I found with it was that it was time consuming to put on. Its not handy for running into the shops for a couple of minutes, but it is handy if they are going to be in it for a while. It takes practice putting it on, but once you have done it a few times, you will be a pro! I think they are normally over the $100 mark, so if you can get it under that - bargain! You can also make them for a lot cheaper again. If you are after something super quick to use, something like a ring sling is perfect. bubs is snug, it takes 30secs to put on and you have 2 hands, plus you can use it until they are proper kids. (my 3.5 yr old still goes in it when she wants!)Slings all have different purposes. Its good to get a couple of different ones to cover the different uses.