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I installed this for an elderly couple, and it is great for them. The screen is large and bright, and the night vision is very good, so they can easily see who is at their door. This is NOT the WiFi-connected version, it's just a wire going from the doorbell/camera to the monitor. Simple and relatively easy to install. BE SURE TO READ THE INSTRUCTIONS! Especially if you are using a CAT-5 or 6 cable from the doorbell to the monitor, (instead of a flat one), because the wires need to be attached in a certain order to avoid the ones carrying the power causing interference.
All in all it has been great. My only small complaint is that the icons didn't all make sense to my elderly friends. I ended up taping a little label that says "TALK" over the icon of the unhooked telephone.
EDIT almost 1 year later: Excellent customer service! The doorbell/camera started making noise, so I emailed support. They had me try some testing and send video and pics, and they determined it was something wrong with the doorbell/camera itself. They sent me replacement in record time. Thank you!!!