The X1D is really slow and a pain to use, but the sensor is really good, even when compared to D810 and Otus.
I'm still thinking whether the IQ is worth the hassle...
Slow and a pain compared to what?
- Compared to MF film cameras? No. Manual focus and winding film is no speed walk session in the park.
- Compared to Hasselblad Hx series? Far from it. The H series is a slow-to-do-everything overweight brick by comparison.
- Compared to the D810? Yes, the X1D is slower to autofocus and shoot. But it's less bulky and actually lighter.
- Compared to every other MF system out there? I haven't tested nor used them all, but from what I've seen, the X1D is the speediest and lightest of the bunch.
Despite the X1D's quirks, I find it easier or at least easy to use than most DSLR's, albeit slower. It's a different sort of camera so it does take some getting used to. If you only pick up and use it for ten minutes at the camera store, you probably will find it awkward. I'd suggest using it for a full day before coming to conclusions on its usability.
Medium format in general is definitely slower and a pain compared to most small format systems. For most folks, the difference in IQ is probably not worth it relative to the price either. If you've got the cash and you want that last little bit of IQ, then it makes sense (maybe).
John