Instruct: Classify a review as either positive or negative.
Query: Easy to install, nice optics.

These were installed on my door to my garage. I wanted to be able to see if I had closed the garage door without opening the inside door. They were very easy to install with the instructions provided, took about 5 minutes. The optics I think are pretty good, what you would expect out of a peep hole. The finish is good, and there have been no problems so far.