Pros: easy install. if you have mechanical background.

Cons: Purchased late Nov 2010. Unite has had problems since day one. Sensitivity is to high. Did a work around by blocking most areas in camera range. Trees branches anything that can move. Someone came on my property and damaged my boat attempted to review only to find unite would not go into menu mode to access memory called Night Owl. They are Helpless call for hours to get thru on forever hold for teck. Told to try several override codes none worked. Told to use online report to get RMA for unite return to them. That was on the 18th of march tried contacting 2 more e mails no response. Try calling 6 x disconnected after 15-30 min. Do NOT Buy no service no repairs