I own two. For the RPI for a B + and to the RPi2. They fit perfectly, it does not move once clipped. Simple to set up, look "frosted" friendly and you get to see the LED activity on the map. The holes are properly adjusted. Small clear rubber pads are provided. There is possibility of setting the case on a support because underneath there are 2 holes (or "wall-type fasteners"). It can be very convenient to fix with a screw head protruding or other DIY. Extremely lightweight, it can be important.