Baby K'tan vs. Other Wraps?

I like the idea of the Baby K'tan carrier because you don't have to tie it all up every time. I also think aesthetically it looks a little better without that tail hanging down too, but that's less important. Is there anything I should know about Baby K'tan that might dissuade me? I do hear people saying to size down. But I'm pretty sure I'd be an extra small normally, so will that be problem? Also, what about the Baby K'tan Breeze and Active vs. the original?