Hi Julien,
I demo’ed a kinetix anf I’m considering it as an upgrade to a very similar system, Nikon body + V3. I haven’t bought the camera because I still have a TiE. In terms of sensitivity I saw a very similar performance to my Prime BSI (which is what I have coupled to the V3). It has also a “fast” mode but need lots of photons to get nice images at 500 fps. Talking to photometrics recently they told me that the noise is even lower now for this fast mode. For us, doing tiling and mosaics as our bread an butter the larger field of view is greatly appreciated. The fast mode might have some nice applications, like pixel based FCS or calcium imaging.
hope that helps,
Alvaro