Seems reliable enough to me...can't ask for much better I feel
critical alerts due to my own termination of a program and a game
multiple alerts about usb devices being installed (to be expected)
multiple alerts about updates, apps and windows (failed then succeeded installing updates so all good)
Overall I leave the system on 24/7 or occasionally use sleep mode, S1 not the typical S3 sleep mode though so when it wakes it is less than half a second, maybe faster than that but it is really kinda hard to judge something that quick.