It's super easy and runs via the app or keypad. https://simplisafe.com/From the website - "Without Wi-Fi, you can still change your system and sensors’ basic settings via the Keypad as well as take advantage of our Professional Monitoring service’s basic features.

We recently purchased a 6 unit complex that was full and had "good paying tenants."  Unfortunately we have discovered that the guests of a couple of tenants were not being upstanding citizens and got themselves in tro...

They now monitor the heat usage each month and send a bill to the tenants calculated from their usage and corresponding share of the gas bill.

(Mistake #3, not monitoring it myself or being a more sophisticated system.).

Finding, retaining, and monitoring housekeepers4.

Would it be wise to install a RING doorbell to monitor who goes in and out of the unit since I would be renting out by room?

The most impactful part, they monitor our STR's 24/7. 

We currently use a simplisafe system to monitor the driveway to audit how many guests enter and if they bring pets.

If you have a heated pool it is imperative to have a wifi control on the heater that you can monitor and an excellent pool service company.I do disagree with @Chris Watson about the small drop in fiberglass pools.  

Once it’s in their fold, they seldom monitor price, or respond to reviews, etc. if things are operational they consider that “good enough”.