You’ll need to connect the Pro to a doorbell transformer that supplies 16- to 24 volts of AC power. If your home already has a wired doorbell, it’s probably at this voltage, but you’ll need to check. And not every home has doorbell wiring. If yours doesn’t then you’ll need to install power at your porch (or get an electrician to do it) if you want to use this.
I got the Costco version a month ago. Very happy with the system. I came from Simplisafe, while I liked that service you had to pay for $25/mo plan in order to use their App (basic monitoring is $15/mo for Simplisafe). Rings app is waaaay better and is free to use even without monitoring, I'm currently on my home monitoring trial with Ring, but will definitely sign up for the full year with no hesitation (1/3 of the cost I was paying). No issues integrating the First Alert Smoke and CO detectors (Simplisafe can only use their products). Also if you have ring cameras the recordings for that are included in the $10/mo or $100/yr
Ring cameras will work without a monthly fee, but Ring doesn’t offer any form of free storage beyond a free 30-day trial. Their first plan is Basic which is $3 per month per camera. This plan includes 60 days of cloud storage, video review, and video sharing. Their second plan, Protect Plus, is $10 per month. It covers unlimited cameras including both doorbell and security cameras. This plan also includes coverage for your Base Station. The same $10 per month that provides unlimited cloud storage also provides Ring Response (24/7 professional monitoring) and Cellular Backup.
As far as actually using the Video Doorbell 2, my experience was largely positive. The video that’s streamed live from the doorbell is bright and has decent resolution, and the IR sensors around the camera make it possible to see visitors at night, too. Connecting to the camera through the smartphone app was quick, even if I wasn’t home and had to use LTE, and the two-way microphone and speaker made it possible to talk to visitors directly. I was even able to view the camera’s feed on Amazon’s Echo Show — though it doesn’t support two-way audio, and I had some trouble connecting to the camera at times.
Unfortunately, there’s no video-on-demand (VOD) feature that lets you view the outside world whenever you want. Instead, you have to wait for someone to approach the door. VOD appears to be on many users’ wish lists, and Ring says it’s working on adding that feature. With VOD built-in, the doorbell would instantaneously turn into a full-featured security camera, so let’s hope we see this addition soon.
2 - This kind of goes along with #2. You cannot access the doorbell with security software like Blue Iris,et.al. Now, I get that they want to sell you their Cloud service and I'm ok with $30 / year to have an off-site backup. But if you could link the doorbell into your security system you would have an actual video of everything in your possession and you could access it from any computer in the world. That would be REALLY handy for police investigations and any legal hassles that may come your way.