The base model nest doesn't have the "learning" built into it.
https://store.google.com/ca/product/...ostat?hl=en-CA
I have a nest learning as well, and I am also skeptical it has saved me any money. I have the smoke detectors so I am well invested at this point.
I have had Honeywell before nest and it was rock solid, but lacked any connectivity. That was 5 years ago. Their new products look like they have caught up and are cheapest option.