Good gyro at a great price. This is one of the best digital gyros for cats and trucks. Cheaper gyros tend to be analog and you have to adjust the little screw to set the gain and they usually don't work very well. This you can assign a channel on the receiver to adjust the gain. This older gyro probably isn't the best drift gyro out there but if you need a stadium truck or drag rc to keep a straight line? It's the one. I've put them on anything that has a tenancy to spin out or runs on loose dirt and gravel. If you haven't tried a gyro you are missing out.