I can't say enough good things about the Aosu Pro, and would give this product 6 stars out of 5 if I could. So happy that I've switched over from the R**g doorbell, that I've even convinced two other people so far to do the same, and will continue to convert as many people as I can.In short, this video doorbell does everything wonderfully: It picks up motion and it alerts us promptly with clear images and video. It has all the features that R**g does, and even these added advantages over R**g:- widescreen format offers a larger viewing area than R**g- night view is clear—so much better than R**g's night vision- comes with an 8GB SD card to record your video and images (no subscription necessary just to do this, unlike that competitor!). See first photo.- comes with a homebase so you don't have to buy a separate "Chime" (unlike that competitor)- has a special tool to easily remove the doorbell for charging, instead of having to unscrew those tiny R**g screws- strong battery life! My R**g battery lasted about 10-14 days before needing charging. Under the same weather conditions, so far my Aosu has lasted much longer (product description says up to 180 days, so we'll be eager to see if this is the case).- can differentiate types of appearances at the door, and tells you if someone is "passing", "lingering" or "staying"- has a feature to enable "human only" presence at the door, and eliminate other types of alerts- has three pre-set messages that you can choose at any time to answer when someone rings the doorbell (instead of choosing just 1 of 3 preset messages, like R**g)- has the different voices of male or "clown" to disguise your own voice should you wish to- has an audible alarm that you can enable, if someone were to remove the doorbell- if you have multiple doorbells, allows you to watch live views simultaneously on a single screen (without having to separately click "Tap to Go Live" on each unit each time, like the competitor). See 2nd photo.And if you do want to pay for the Cloud subscription, you get even more features, including more storage and more intelligent features like facial recognition.In addition, the customer support was phenomenal! I had issues with the network connection not working after the first week, and I contacted the support team by e-mail. They responded in less than 24 hours, and offered me a replacement unit within 5 days (it arrived in less than that!).In summary, I think this is the best video doorbell you can get for under $150. By cancelling my R**g subscription when they notified me of the price increase, I got a prorated refund and put it towards the Aosu. Since I no longer have to pay an annual subscription fee and don't have to buy a separate Chime, I actually feel like I made money, and for a better unit! The best thing R**g ever did was raise its subscription price so that we were forced to look for an alternative, and we discovered how much better Aosu is.