Hey - so I'm going to give you my honest opinion too and knowing that other bags that you love love love are the cerf and bbags - I'm not so sure about the brooklyn line... I may be totally off the mark here (apologize if I am) but it sounds like you're in love with the comfort factor, lightness, and funkier vibe the bag is giving, however, the style itself must not have completely you won you over. Otherwise - if it had been love love love - you would be posting us pics of your new addition rather than asking us our opinions on whether to get it or not kwim?
I'll venture out further to say that perhaps you're feeling what I am feeling? Or what I am trying to do? I'm searching for a Chanel that has the same great qualities as a bbag... funky, edgy, slouchy yet with structure, AND can be a shoulder bag. LOL - if it can have tassles I'd be in heaven. So far - no luck in finding a perfect match, but I'm sure
somewhere down the line - Chanel will come out with a bag that'll do it for me on the 'edginess/funky' scale.

Anyhoo - not sure if you're sorta feeling the same as me or I'm just completely way off the mark...
but in any case - good luck with the decision. Personally I would pass, but I think a lot of that is due to me being in a place where I'm not comfortable throwing down such a huge chunk of change on something I know is more trendy than classic and I can't see myself still carrying 10 years down the road... but that's just me and my personal circumstances/situation at the mo.