You can bend over etc with the HAB without bub falling out. Bub's head is well supported & doesn't get in the way (because you can tuck it under one of the shoulder straps). If you fit it properly, it's really good for your back (like rayray, that's why I chose the HAB). It does take a few tries to get good at tying it (it's much easier if you practice in front of the mirror - with a doll!), but I'm pretty quick at it now. Takes me a minute or two to tie it up, and about the same to get Calvin into it.

Only thing I don't like about HAB is that it's really hot in summer.