Worse than useless. The only thing that reliably works is getting a single frame preview when a camera is triggered. If I need to actually see the footage, or jump to the live feed, there's a greater than 80% chance it won't load. I'll be repeatedly asked to sign in, and eventually it will hang indefinitely trying to load the recording. Support tells me to force quit, clear cache, restart. This *does* work a little more than 50% of the time, but also takes several minutes.