Product review (4 stars): The dial sucks. It's from 1940
Does what it says on the tin. But two things.

1st thing: The dial sucks. It's from 1940. Use a better dial.
2st thing: The temp control isn't as precise as it could be in my experience. I need to keep things at just above freezing without going below, and I worry this might let things go below.

But it works well enough, so four stars.