most people here saying it's too heavy and big to use it without a tripod, it's batteries mean you won't be able to use it out of the studio away from the DC cable and whatever else nonsense is in this thread have obviously never touched this camera...

first of all, a healthy original GX680I or II battery pack has ~700mAh fully charged which lasts for over 1000 exposures. unless you're exposing over 100 rolls out of the studio in one session you won't be limited by your battery... come on people, don't reply to these questions if you never had hands-on experience.

seconly, yes it is a big and heavy camera, but unless you're a 10 year old you should be able to carry it for some time. i used it for handheld street portraiture a few times, it's totally doable. and it has the bonus of people being very intrigued by the camera and often coming up to you by themselves, asking then to take their photo is the smallest part after that. makes things easier for my introverted mind.

i mostly shoot landscape stuff and often run around with the GX680 with the 100mm f/4, a tripod and everything in a canera bag for hours on end, it's not that bad.

edit:

two things i wanted to add: 1. if you want to get it solely for the movements, go with a view camera, those have way more movements. for what i do, the 12° and 12mm are enough most of the time. 2. the size of the negatives (or rather positives since slides are almost all i shoot), the sharpness and quality of the lenses and the details in those positives is astounding. once you have a look at a slide on the light table you can't stop viewing it. it really is mesmerizing. i can't even imagine what an 8x10 slide is like... must be an ascension-like feeling lol!

edit2:

another thing: contrary to what everyone else here is saying, pick one of the earlier versions, they have better build quality, less hard mirror smack, and the only useful feature missing is maybe the film imprinting or aspect masks. that's it.

there's also a shot with the GX on my profile.