Average draw would be similar to the other person 200-300 watts under load. My server is really only super loud on boot. The noise levels are a none issue for me.

Most the drives I get I scan the smart data and most have nearly no usage on them. The drives are cheap enough and running parity I am not too worried about data loss. I have been running the server for 2.5 years now and I have yet to lose a drive.