Babybjorn carrier vs sling

[numbertwo]

Hi everyone. I'm expecting no.2 in a few weeks' time and have been wondering about buying a sling for the little one - I have a toddler as well so I'm thinking it ill be useful to be able to "wear" the baby for a while.

Anyway, I have a babybjorn carrier from DC1, which seemed to work well but have seen a couple of negative comments about them on other threads so I am wondering what people think about the pros and cons of the babybjorn carrier vs a more traditional sling.

A few doctors both in China and Russia have advised my wife and I to only use baby Bjorn for no more than 30 mins to an hour a day, and for a maximum of 2 hours when we need to, and they advised against using baby Bjorn for long periods over consecutive days... Our doctors also all agree that Baby wraps are much better for baby than baby Bjorn, be it wrapping baby to your belly or your back, they say the wraps help stretch babies legs.