I don't blame you, I have bought things without thinking about edge cases, but I couldn't imagine buying that.

We have a lot of winter storms here, and power and/or cable or fibre can be broken by a tree.

To be unable to change the temp for a couple of days would seem highly inconvenient, so naturally I'm doubly nervous about such things. (I have a generator just in case).

But anything cloud connected, as a necessity? Nope. Never. It just leaves so much variability to your time and money.