I am contemplating on getting a new bag which is the Galliera GM. I am 5'4" and weighs 160 lbs.. is this a perfect size for me.. for those who own this bag what are the advantage and disadvantages of it? its kinda costly thats why i have to think a hundred times! i was originally planning to get the speedy azur 35 as a summer bag... is galliera perfect for summer too? please advice me!