purchased the Trevi PM, but I don't know if I LOVE it. I saw the Tulum GM and I was really drawn to it, but the salesperson sort of persuaded me out of buying it because she said she did not like it. She says that it loses its shape and does not stay nice looking. Anyone that owns a Tulum GM, does it lose its shape and get slouchy? Any advice appreciated. I am not sure why I don't love the Trevi PM.