looks really good. One thing I think is needed is ability to test "node selection" logic.
I just put in a job to check my firewalls for interfaces "not monitored" for failover and it came back with 20 devices...I know I have more than that and now have to flip over to RDP to check it out.
functionally sound so far. great job!
please move to feature request if this should go there or let me know and I'll add FR.