I think the graphic accordian is cute, but I think for the price, its a tad too much for a vinyl bag... I think for that much you should go for the GST. I think it will definitely hold up better in the long run because of the sheer fact that it's caviar -and it seems like it'd be more classic (i.e. a better long-term investment) -I don't think it's a "serious" look, there are many ways you could incorporate it into casual wear, and make it look fun and hip... it's a very versatile bag. IMO I think the Cerf gives off a bit more of the "serious-work" vibe, but maybe that's just me. Anyhow... either way, they are both pretty bags. Good luck!