As far as the privacy that’s an interesting question. I think with sense I am dealing with raw data, not personally identifiable data. I don’t know who is taking extra showers, I just know the hot water heater consumes 180% than it should for the number of registered guests Either the heater is failing or they have extra unpaid guests. How is this different than the GPS tracker that the rental car company installed on my last car? Or the logging of search habits that Google is compiling on millions of Americans? It is far less personal, for one thing. I only know if the garbage disposal was run not details of by guests personal habits. The positive side of this is using the data to see what aspects of the home I should ‘renter proof’. A timer on some devices that routinely get left on means lower costs, sense all cost do get pass on the guests this is too their befit.
On many vacation rental sites you’ll find a discussion on owners limiting the temperature selection by tenant or worse still changing the temp remotely. Sense certainly does not reach the same level of big brother overreach.
Most of the data that I get from sense I am able to confirm via home automation anyways. I know the check in check out times from the HA lock. I know if the home watch people really visit every week as they were contracted for (no). I could easily install a HA water meter and see how much water they are using.