"Plus points: 1) Small and light enough to be pinned to a beam just where the power is needed 2) Can deliver power off-centre by using an 8-tooth gear on the central axel and another 8-tooth gear next to it – could be useful in tight corners. 3) Can be placed side by side and will still allow an axel to pass between them – useful in some circumstances 4) Can be stuck on top of studded bricks 5) Axel hole rather than stub axel of mini-motor is more flexible Minus Points: 1) Longer than mini-motor 2) As with mini-motor, requires quite a lot of gearing to get a useful axel speed (at least 1:36) which adds to size / complexity of models 3) Only compatible with power functions battery box – which is too big for many applications Please LEGO, give us a small motor to power pneumatic switches etc."