I'm probably no help because I like them both but tend to get bored with black items. I'm thinking about this wallet also, however Mono wouldn't be my first choice because I have too many Mono Things. I'm only leaning towards Mono because I already have a Mono Check book wallet that I'm going to put inside.
Good Luck Deciding!
I have a zippy organizer in monogram.. And adore it!
It is huge, but fits in all my bags.. Can easily accommdate all my cards, cash, receipts, checkbook, even my passport!
I can vouch for the mono, as it is durable for everyday and travel!