Very happy with it overall. I would give max 20$ for it. However, because of walls and other things, you still can get false alarms sometimes, but the App for Nut is really great, there are multiple ways to stop false alarms or unwanted alarms. Some of the features on the device seem to interfere with or counteract each other. Very poor quality, it broke after a week. They aren?t small. Each of the packages came with one bonus set of the rainbow knobbies. Some people complained that it doesnt have a microphone, input or can link to other old JBL speakers. The six self model is tall, which, with out any diagonal bracing, means there is a fiar amount of side to side "sway" in the unit no matter how tight you assemble the shelves. Overall it?s a great product if; 1.