I would say if you love the trevi and just want to size up then go for it! Be sure to try on the GM before you do just to be sure it's going to fit your needs! good luck!
Oh why can't they make an MM Trevi for people like you and me
I have a trevi pm that I rarely use b/c it is a little too small for me. I can't fit all of my stuff in it comfortably - the bag gets packed.
I initially thought that the gm was too big for me, but now I am reconsidering. Someone has offered to buy my trevi pm at a pretty decent price. Would you sell the pm to get the gm? Is the gm just too huge?
I am 5'2" BTW.