Product review (1 stars): "#1 best-seller" is a waste of money
I bought this to put in my toddler's room - I'm constantly adjusting the air vent in his room because it's too hot or cold for him.  Right out of the box it didn't work right - it read 78 degrees (an impossibility with the 0-ish weather, my drafty old house and worn out furnace) with 15% humidity.  It sat all night next to his humidifier and didn't budge from 15% or 78 degrees.  I put it on the tub ledge while I showered, still 15/78.  Put it outside in the snow, 15/78.  (Yes, I took the plastic label of the face)

I didn't read the review first - I was in a big, big hurry to make this purchase and leave for work.  I bought it without hesitation because it had the #1 designation from Amazon, so I'm partially blaming them for this stupid purchase.  They have narrowed the categories they use so drastically they've rendered them useless.  I noticed it awhile back with book categories so I shouldn't be surprised they've done it with other products, too.  "#1 best-seller in Time Travel Fiction" is good to know.  "#1 best-seller in Time Travel Fiction where the main character has blue eyes and a sister named Susan," not so much.  Shame on you, Amazon.

I was in a big hurry when I got it too - threw the packaging away so I can't even return it.  Feeling pretty dumb now.  Don't buy this useless thing.