The article is not talking about a regular checkbox that you would use on some web form. It's a special checkbox that you click infrequently, as a reward when you do something for a habit you are building.
A lot of commenters seem to have overlooked this... C'mon people, use your brain.
I don't think one can honestly give a harsh critique without trying it, in this case. It's a very specific use case. I haven't tried it myself, so I don't actually know if it is any good. But the vision they had when designing it does seem good for this use case. I'm a sucker for the feeling I get when I cross something off a list with pen and paper. I may actually download the app just to try it :)
A lot of commenters seem to have overlooked this... C'mon people, use your brain.
I don't think one can honestly give a harsh critique without trying it, in this case. It's a very specific use case. I haven't tried it myself, so I don't actually know if it is any good. But the vision they had when designing it does seem good for this use case. I'm a sucker for the feeling I get when I cross something off a list with pen and paper. I may actually download the app just to try it :)