Anyone got any experience with them? I usually buy way cheaper cameras than this but it seems you can get 4 the price of 3. They don't not need a cellular plan. The cameras communicate with each other and send the pics to a base cam. I am using them on private only. I hear good things about their CS also. It would be an investment but may be worth it not having to pull cards and I could place the base cam near my house. Anyone use them?