I have a Hasselblad system, and also used my brother's GF670. My thoughts are that if you're happy humping a tripod, stick with the 'blad, otherwise, the GF670 is an easy winner for me. It's like carrying around a 35mm camera vs. carrying around a brick in the case of the Hasselblad. I'll stick with the 'blad as I don't mind carrying a bit of gear around sometimes, but if I wanted to travel light and shoot handheld, the GF670 is awesome. Also consider Rolleiflex...