@DinnerYeti It is powered by two AAA batteries. I actually prefer batteries over waiting for the minimotes to charge. Battery life is reporting 96% after serious testing, so I will have to see how long they last. I would say that its build quality is slightly better than the minimotes.
The devices functionality is extremely consistent. Button presses register exactly how expected. I have not mounted it yet, but will in the future. Here are just a couple pictures that I took a couple days ago. I will try to take more this weekend.