Funny thing, I was deciding between the two (zippy and koala) just a few days ago and I selected the koala. Koala arrives via eluxury tomorrow and I will let you know if I made the right choice. I selected Koala because of the beautiful signature koala clip...my god it does look like a koala bear's nose...I am such a sucker for cute! And because (like Nita said) it is compact. A bunch of my bags are not huge...like Viva Cite MM, Eliza, Bosphore Pouchette and Illovo PM and I wanted to make sure that it would fit nicely. I will report back!