Negative Positive
Title: Efficient
Review: It's nothing fancy, but it does the job for an alarm. Works well on our carpet, though I have to crate the dog before turning it on. I haven't used it as a doorstop because I'd like to avoid breaking off the metal piece, but it's a great option if you rent and don't want to add locks or latches to basement/garage doors.
Is the review positive or negative? 