> Are current users of this 1st generation X1D camera happy?
Yes. It does all that I was expecting. It is a lighter and smaller Hasselblad to replace my H4D.
Image quality and colour accuracy with Phocus is excellent.
> Have you experienced any issues I should be aware of?
None that you probably haven't read about. It is slow to turn on and fairly hard on batteries if not tethered.
I will probably get another battery and the battery dock.
The biggest issue for me was getting used to an EVF.