The other day I had to wash him, and so used the Baby Bjorn - never again!
Reasons:
1) In the Ergo sit the child in it and splayed legs depend not so down. This is the one for her hips better, on the other hand, it is much easier, thus to crouch down or pick up something because we do not continue your legs forward in the way has - but they are well cleared on the page.
2) The Ergo is much easier to adapt (to store on different carriers) and easier with baby, so that when she fell asleep in it, and go back to sleep and not wake up immediately when take out (the best place it on a folded diaper / cloth and after tie drop above)
3) The head is better supported in Ergo, a total of the baby is much better enclosed and salvaged
4) On the back it is much more pleasant, because the carrier is wider than the Baby Bjorn and better padded. In addition, the hip belt for relief is really class.
5) When the baby with the use lies down in the front cross carrier, you can breastfeed comfortably and discreetly.
It is not cheap, but we think that it is worth every euro. Many baby accessories things are dispensable, these carry no more for us.
It comes by the way also in other colors (that are retained well when washing).