I use my main box as a webserver and mail server, so it has to stay up
Have all the sleep features, power control features shut down... A fairly good UPS w/power filter on it, not quite big enough for the box and the monitor I have on it.... Had a new wire put in a year or so ago with an isolated ground...... Behind a physical firewall and a software firewall..
Power has been pretty good in the 3 years I have lived in this house. Haven't seen it go brown... Only 2 or 3 outages I can recall.
The other 2 boxes are on the same wire but no UPS's on them at this point.... In case of storms etc, they get shut down...
The server (which is also my main PC.. need to go put up a box for strictly server one of these days) never gets shut down unless absolutely necessary...
I host my navy alumni site off of it for them and some of the older guys get very upset when they can't get to the site....lololol...