My complaint is that when I have a long time (eg., Via the working day) does not use the remote control and now want to switch on an electrical outlet first nothing happened. After the first keystroke, I have to wait until another keystroke triggers an actual action for about a minute. This applies to the switching on and off. If the action was executed, the remote control also react in the next few minutes again without delay. Very strange behavior.
I can not say anything about the power consumption in standby mode and the lifetime of the battery in the remote control.