I have a Beco Butterfly 2. I liked Angela's Ergo Sport that I tried better because the straps seemed more comfy to me, though I didn't wear it all that long.
I bought the Beco cause I liked the pattern and I didn't know which one I'd like better.
For me the inner panel isn't a big deal b/c I don't think I can BF in a carrier. My boobs are located low on my chest (not saggy, just their location if that makes sense) and I think it would be hard for me to get an older babies mouth down low enough to be able to BF in a carrier. I will have to try on the next baby when he/she is small, in my wrap n wear and see if I can get it to work next time.
I am tempted to buy an Ergo Sport since they come in blue now.

But I don't want to sell my Beco!