I bought a Ring Pro doorbell last weekend. I partially installed it to start. The good news is that the basics worked easily: wired it up, connected to wifi, and had doorbell functionality, notifications and video without trouble. The downside, is that you need a good deal of space in your existing doorbell ringer housing to hold the wiring and power adapter for the Ring Pro (if you want the old doorbell to keep working.) My old doorbell is broken -- prompting this purchase -- but I bought a cheap mechanical doorbell so there would be chimes in case I missed a digital notification. And the new doorbell housing is too small to hold the wiring for Ring Pro. The other challenge is going to be determining the right height to put the Ring and what to do with the existing door bell wiring...or keep it at the same location and accept cutting off heads if the visitor is standing close to the door. After that trial-run, I decided I wouldn't return it and fully installed. It worked easily out of the box. No wifi problems, no router issues, no software hiccups. It was Apple-esque in the experience. I also bought the $30 Chime. Instead of replacing my mechanical chime, I gutted the hardware and used its wall box to hide Ring Pro connections. I bought the Chime to have an in-house 'ding dong'. The Chime didn't sound initially. It seemed to have a polarized plug, so I reversed it in the outlet, and it worked after that. Perhaps it just needed a power reset to get going. I've used the Ring Pro by both local wifi and LTE. The quirks are: our house faces East. Motion alert seems to trigger every morning with sunrise. And every time we leave out the front door, we get a motion alert that, well, we're leaving. Connecting to live video is good, but not 100%. And because we have an alcove entry, the wide field of view is mostly wasted. It has a 30 day free trial of the video archive service. It's nice. But I don't know if I'll subscribe for $3/mo for the video archive. Is it worth spending $300 to replace a dead $30 mechanical chime? Probably not. But it's a neat gadget and we're happy so far.