Pros: This did provide power and automatic shutdown through some power outages over about two years.
Cons: It failed after a less than 1 minute outage, with only one server hooked up to it. The kicker is that even after failing, with no power coming out of any of the outlets, it continued to claim that it was doing great. The breaker was not thrown, and the unit was still "on". I plugged the server into the wall, left the serial cable connected and checked logs, etc. Everything A-OK, it said. Passing self-tests.
Summary: OSX support is limited to network management (no usb), so even if you do install the software and hook it up you are out of luck unless you run windows or feel comfortable running blobs on fedora or suse. I haven't hooked a pc in the switch room to even see if there is a means of using the switchable outlet without the add-on card, but wouldn't be surprised it there isn't; there is no reference to it in the manual anywhere.
Pros: It works. Simply put it held a load when tested. I haven't tested it with the generator running as another poster said that could be a problem. Next time we run our tests I'll post again if it fails to switch back.
Cons: Really not network manageable at all. It is great they include a switched outlet, but without any means of managing it the feature is worthless. The add-on card is extremely over priced. Just give me a basic ethernet connection so I can monitor the current status, load, and control the switched outlet - anyone who really needs the snmp and EPO will be buying a more expensive unit anyhow. It would be nice to have some sort of limited management for smaller network setu...