I've got a HAB and am just getting used to it. Patick loves the peapod position especially when he is unsettled. The other night he wouldn't sleep anywhere but my arms so I put on the HAB and after he settled he fell asleep and so did I.

The only trouble I have is then trying to transfer him from the sling to his bed. The HAB is so secure it is difficult to do this without disturbing them.

I chose the HAB over a ring sling because it was better for my back. Good luck