>>2901629I own the Z and it's a kick-ass camera. My feelings on the X1D are a bit mixed because it's not like a medium format A7R; it has no FP shutter, so you can only use it with its own lenses or adapted H. Even if an adapter gets made for other brands, it will still only work with those lenses that have central shutters, unless Hasselblad figures out a way to implement an electronic shutter. (the Z shares the same sensor and has no electronic shutter)
Other negatives include: no swivel screen (in 2016? really?), half the frame rate of the Z (1.5fps), electronic viewfinder (not a high-end panel like in the Leica SL), Phocus software is worse than Capture One and Lightroom (but you can still use LR), few physical controls, and so on. Basically, you'll be giving up a lot of utility to get a camera that is 1/3rd the size of the 645Z.
In the X1D's defense, it will very likely be an easier camera to carry and shoot hand-held, no shutter or mirror vibrations to worry about, and Hasselblad glass is historically very good, although there are only two lenses out, and they carry a hefty price. With Pentax you have a whole range of legacy lenses that you can score for $200-$800 a piece depending on whether it has AF or not, and if you fancy the high-end, the 28-45mm and 90mm Macro are peerless among MF glass, at least for the price...
TL;DR: You should weigh the trade-offs and decide for yourself. A large chunky camera like the Z doesn't pose a problem for me, but it might for you, the X1D would be an amazing camera to use in quiet venues because it doesn't sound like you're charging a rifle every time you take a shot.
