I had a Skybell HD and it wasn't very good. I would not recommend it.
The image quality is poor despite 1080p and the 2-way audio is faint at best. In a busy street you barely hear the person standing at your door due to the background noise and he barely hears you.
Do some research and read some other reviews.
The_PlantYes I did but to no avail, but I don't blame them nor the product. I live in a noisy street (constant traffic, bars, nightlife) and not being able to communicate clearly with the person at my door was a showstopper for me. It might be good enough if you live in a very quiet area and you don't expect a highly detailed image, but I can't tell you that for sure since that's not my experience.