Just recently bought an Atomos Ninja 2 for my Nikon D800 DSLR. I am also going to get the SDI-HDMI converter for use with my HPX370. I am also getting a component to HDMI converter to test out with recording a signal from my Z1U via Apple Pro res. Records in Apple pro res, so no transcoding necessary for editing in Final Cut.
I also like the option of using solid state drives for shooting situations that will have a lot of shock and vibration.
I will post impressions and videos soon after some testing.