Hi OP, I have both and love them for their unique-ness. I purchased the Tiv-GM first. I always thought that it was a gorgeous bag (however it stays in the dustbag more that I would like). I really only take it out for special occasions because it can get kind of heavy as I tend to put alot in my bags. Then I purchased the Stresa PM (before the last price increase). This is my go-to-everyday-bag! I love it just as much, but the Stresa (IMO) is more functional and easier to get in and out of (although some might disagree). I say go try them on in the store and see which one looks best on you. It wouldn't hurt to play around with them in person and then take some time and sleep on it. Best of luck!