I got the Moby for my twins, mainly because it had the "twin option." However, the few times I tried to get both of them in at the same time, it wasn't very comfortable...for any of us (and they were only 4 lbs. each). I ended up putting them in one at a time, depending on who was the fussiest. I did like it though, and I'm glad I had it. I just don't think you should expect too much when it comes to holding both babies at the same time. Or maybe that was just me!
I just find the moby annoying to wrap. The bjorn is quick and easy, but you can't wear twins. I never had luck with anything. I have a boba carrier, but it's more meant for babies 4-5m+.
Re: Baby bjorn or moby wrap?