Hi Weaver,
No problems with power loss and WiFi passwords. I am often disconnecting the power without powering down. It just complains when you turn it back on that it was not powered down correctly.
There is no Lan connection, just USB.
Bonjour is set to on as default, so no apple issues
Once the initial setup has happened via the front panel and you have it associated your WiFi you can then remotely configure it.
I've the low end model, as I needed it quickly for work. But I assume the higher end ones may have a wired port.
As a side note, when I got my Mac earlier this year, it just seen it and worked.