Just experimented with 3 different motion sensors: Fibaro, Zooz 4 in 1, and Hue. Here is the summary:
Fibaro - kind of bizarre eye thing, but fine, I could get used to the look. However, I could never get it to pair correctly on my system. The instructions and options were amazingly complex - too complex. I gave up on it.
Zooz - got in connected to my system, but it seemed to throw a wrench in my whole zwave setup, with other devices becoming unresponsive, etc. Regardless, the device was flaky. Changes made in the device setting would show as pending, but I couldn't them to actually update on the device. Motion sensing was very inconsistent. I gave up on it.
Hue - paired easily (as Zigbee). It is responsive to changes in settings and has delivered consistent motion sensing. The overall build quality of the device is much higher than the other devices - its weight and fit/finish is just more solid. I did notice that it sometimes forgets to report lux, which I use for lighting rules. I fixed this problem by doing a device refresh with RM on an interval basis (found that solution in another post).
So far, the Hue motion sensor has been a winner for me.