I'll be graduating university in December, so I've been doing lots of planning as to what I'm going to treat myself to as a grad gift I'm leaning towards the Giant City-originally I'd wanted a Miu Miu Coffer, but I had a purse with woven straps and found them quite uncomfortable to wear all day. I haven't had a bag with straps like the BBags before, and I was wondering how comfortable they are on the shoulder?