Pros: Flexibility...Facing-in or Out/ Hip-Carry/ Back-Carry, very supportive straps, easily adjustable, stylish patterns :-)
Cons: no sun shade
We first owned a BBII, but unfortunately our little one really disliked the "facing in" position when he was little. He kept rubbing his face against my chest and even nursing him couldn't calm him down....SO we sold our BBII and bought the GEMINI, which we absolutely love!!! I adore that you have the flexibility of the different positions.
Would buy this over and over, and have recommended it to my friends:-)