The black 4-way button is actually a slightly bumped up - and the button in the middle of the ring and the Menu button is actually curve inwards. This makes it a lot easier to know whether or not you are pressing the correct button.
The back holds the battery cover, which appears to require a coin to turn.
As for a quick review, the signal is received very easily, it feels thin, and cold if you kept your air conditioning on for too long (since it's made out of metal). Whether it's worth it or not - depends on you. I've got plenty of uses for a remote control for my computer's media - do you?