For a small casing, the battery lasts a long time. Great quality and attention to details, with only a few gripes:
-Since it's wireless you need to reconnect it to the amp every time, it's not a huge deal but still a 15 second annoyance of pressing a button on the back of the amp.
-The second thing is not the pedals fault but it takes away from it's functionality a bit, the amp is a bit slow to change patches, so there is a noticable delay if you're using it mid song. The amp is slow without the pedal as well, but with it you notice it more since it seems like you can use it for a quick channel switch.