I have been using Blink since it was a kickstarter company. The evolution of the product has been really solid. However, if your expecting to have real time surveillance this is not your product. First off let say setup is a snap as long as you follow the direction, something to remember the cameras connect to the WiFi and the sync module, the sync module placement is important. I recognize the camera now supports 2 way audio but I don’t see how that will work since typically you are notified after the video is made. The only way I see the 2 way working is if you had the app open and you were actively looking at the video when the event happened. That said for what it does do in recording events is excellent. The video looks good, and the night time infrared is good. Also, you can’t beat the free storage, and as for battery life they sure have come a long way that said remember to always use the lithium-ion batteries, they recommend by blink also remember that batteries are at there weakest when it is cold out. So to be clear about battery life, I have yet to have a camera’s batteries last 2 years. I now have a total of 3 cameras working all XT or XT2 and work they well for for my expectation. I have 3 more XT2 cameras coming I’ll update this review once those have been configured and and if things improve or go bad. I hope that with the 2 way Blink/amazon will have the app notify you as soon as motion is directed so you can take advantage of the mic.