They still seem to draw noticeable power when in Auto Off, and continue to run slightly warm. Not hot, just warm. Some of mine (3 of the 6 I'm currently using) won't actually go into sleep mode at all, even when the audio interface and computer are powered off. On one of them, the power light dims, but doesn't go out. Clearly something isn't working as advertised consistently.
And of course, if you leave a sample set up, the speakers carrying background blower noise, etc. won't turn off.
I have always had mine on X-10 controlled outlets, so a single button push at the console will turn them all on or off. There's a benefit to having at least one not work right — so I know I forgot to power them down