I only use it during the fall grass planting season (which means any day now), so I can't attest to using it lately. However, I've used it for two prior fall seasons and it worked pretty well. There was something a little odd about having to run one real schedule on the Orbit app before the Hubitat integration would work correctly.
I actually use it and the Rachio community integration since most of my irrigation is on the Rachio. I've got it set up in Hubitat so my two Orbit hose timers are mirrored with empty Rachio zones. I then do all my scheduling and control in Rachio.
Take a look at this thread. Note that it is no longer maintained, but it still was working as of last fall.
[No Longer Maintained] Orbit BHyve Integration - 
Custom Apps and Drivers / Custom Apps - Hubitat
