I love my 6x7s. Please don't get one to put under glass and never use!
I only have the waist level finder, which I personally find conducive to MF landscape and close-up shots. Have yet to do portraits--not enough skill or confidence I guess, given the over $1/frame cost. But it is so fun and so different than digital, and 35mm film for that matter.
If you shoot B&W, most reels/developing tanks handle 135 and 120 film, which is nice. I don't have a darkroom and so digitize all my negs at home. If you're planning on digitizing at home, formats larger than 135 can require special equipment (dedicated scanners, or in my case, a jerry-rigged DSLR digitizing setup).
I find with 6x7 that I am happier with less. I have a wide (45mm), normal (105mm), and short tele (150mm). Sometimes I get the urge to replace the 150mm with a 165mm, or to supplement the 105mm with the almost-pancake 90mm...but other than that I am currently satisfied.
For some reason I salivate over all different kinds of lenses for APS-C and 35mm, but am content with what I have for 6x7. Go figure.
Last edited by filoxophy; 08-20-2014 at 04:15 PM.
Reason: Added stuff