It was better before Google took over. Now there is a 15 to 45 second delay on notifications. It is absolutley useless for the doorbell feature. Too delayed to use as actual time. UPDATE. 11/24/21 Have uninstalled and reinstalled , reset zones and still has same issue. I can pull in my driveway, get out and go inside before I ever recieve a notice of someone in my driveway.After last update app crashes all the time when veiwing recordings.UPDATE 3/24/2022 still junk. Dont buy!