Product review (5 stars): 0.1-degree Fahrenheit precision is really nice.
I really like the 0.1-degree Fahrenheit precision, even though it's probably overkill. (0.2 degrees would have been good enough!) The humidity and temperature readings seem accurate as well. And this one costs about the same as other units that have worse precision or accuracy.

I liked it so much, I bought 5 of them: one for each of our 3 bedrooms and for my wife's and my offices at work.