I'll report on the power savings soon (theoretically, it's >= 100% for me). I replaced a full-sized x86-64 and WD N750 as dumb AP/managed switch (but lost 1 port and may need to use it from time to time). The WAX202 now runs on solar/battery for indefinite power. The x86-64 ran ~45 W/hr. - so it would not be viable for solar and was on mains power.
No WiFi:
0.6 A x 13.5 V = 8.1 W
Lights off: ~6.75 W
EDIT: I noticed I don't see channel 161 on 5.4 GHz WiFi. Odd, I see it.