This ball launcher is definitely the best toy we have ever purchased for our dogs. They play with it all day every day. Pros: We have used it both indoors and out due to the use of power plug or battery-powered options. adjustable force/distance and throwing angle. The big open basket allows easy use for both our german shepherd and our toy poodle (although she has to go up on her hind legs to place the ball in the basket.)Cons: The well-intentioned safety features - the motion detector and auto-rest. 1. The motion detector is intended to keep the dogs from getting hit in the head by a ball however it has a 7-foot distance and I could not get my dogs to stay that far back - they get too excited and want to stand right in front of it to catch it mid-air. So we eventually just placed masking tape over the sensor allowing the dogs to play at will. The balls are not thrown hard enough to seriously injure the dogs. 2. Auto-rest feature. This feature causes the launcher to go into a standby mode 15 minutes after a ball is thrown. The intention is that the dogs would play with it continually for 15 minutes, then take a 15-minute break before they resume. However, my dogs don't typically play with it continusouly. They will play with it once or twice then either chase each other or lay down to chew on the balls and by the time they are ready to use it again the 15 minutes are up and they cannot figure out why it won't throw the ball. I get the intent, especially if the dog is outside on a hot day and not being monitored, but there needs to be an option to disable this feature.