Overall the system I purchased 4 wifi wire-free cameras and dvr are what I thought they would be. A little longer in the set-up due to poor step by step instructions, and laggy, even with the booster. We ended up searching on-line to figure out a step we missed that was not clear in the set-up instructions, but it connected when we did. Love the wire free flexibility. The app takes a few seconds to catch up, but you see everything you need to really well. I'm patient, unlike others in the instant gratification world. I purchased extra batteries/charger to begin any kind of rotation, but I expected that with the joy of wire-free. It fits what this simple family needed for security camera usage, without the monthly fee.