This system is pretty rad for the price. Fairly simple to setup for an Engineering student so i can't judge on the ease completely since this stuff is muh bag dog. The range works quite well. I am pretty surprised on how much you get in this kit. 1 remote and 2 doorbell systems would have sufficed for the price but you get 2 remotes, 2 doorbell systems and a motion alarm.Con so far: The doorbell thingys are just doorbells and don't have any security alarm setting like the motion sensor does. I don't mean the ding dong alarm, i mean the SHTF wee-woo-wee-woo alarm function that the motion sensor triggers. So only the motion senor has this functionality. This isn't a major issue.Pro: This thing is F# And ing loud, which i am in love with. I think i will order 2 more motion sensors as those are the devices that use the actual SHTF alarm but not until i spend more time testing.