I had a surprisingly large amount of issues getting it to correctly message me on discord if needed as part of heartbeat. Multiple times it broke and we fixed it. Then it was chewing through way too much usage so I set it to 6 hourly heartbeat and it stopped messaging entirely again, haven't bothered to fix.
It is nice though for debugging home server things when I ask it to.
Works perfectly installed as part of a server and at mentioning you there. Direct DMs are finicky in my experience.