I am 5'7" and I have a PM. I love it, but I must tell you that I eventually want a GM probably because I love Evelyne so much. I'm always happy to offer my 2 cents about an Evelyne
For me it was initially all about color as I wanted Moutarde and when I saw the PM--sold. If I can find a GM in a color that I love, it will most likely come home with me. The PM is very comfortable and as bagalogist mentioned, the GM will be heavier and may not be as comfortable? Sorry if I'm not much help but here's a pic for reference.