I took about a month to fully review this product. Here is what I think about the peephole/door bell.Overall a very good product. I will say that there are a few improvements that could be done. Below I'll go over some pros and cons that I have noticed. There are not many cons for what you get.Environment/elements the camera was tested in: Apartment complex, door opens to outdoors, no hallway, day and night application, 1st floor, high person traffic, hot and cold (34 was the lowest), rain, bright sun, cloudy, high wind. The door is covered so some element protection.Pros:Easy to connect to app and internet.Clear video and images (could be better, still good)Battery does last a while even with a lot of settings turned up along with sensitivity high.Door bell works wellNight vision does very well when in low light.All tools needed to install are in the box.Easy to install on the door.The knock sensor is really nice.Good quality materials.Can change out the face plate.Battery swap is easy, it doesn't take too long to come back online when swapping.Can have a privacy block on the video.Depending on your setup, it can give you a better view (wider) than the doorbell.Cons:The sensor has a delay when picking up people.The delay in pushing the doorbell to phone notification. I got it, it could be internet and phone service.Overall, good product and great features for cost.Note: take your time installing when pushing through the door peephole. The ribbon is sensitive.Last con-Paying for the new save your videos (a/o 23MAR23)Kind of a scam to have everyone pay their videos. Make a "free" feature get everyone on board and then dump that, c'mon. Okay rant done.