I have to second what the others have said about the customer service. I'm not an engineer but I want to understand how this works if I'm going to use it for my baby. Their customer service chatted with me for more than half an hour explaining all the ins and outs.
Easy to set up. Surprisingly good video. A lag of a second or two, but seems to track just fine. And customer service chatted with me for more than half an hour, answering all my (perhaps unnecessarily specific) questions, so I'm sold :)