From Washington Post http://www.washingtonpost.com/blogs/compost/wp/2013/02/14/inspired-by-nyt-tesla-test-here-are-my-consumer-trials-of-some-products/ Example review: "Pencil: I was led to believe great things about this pencil, but it wouldn’t write on the page. Bit large chunks off the end in frustration but still unable to create writable tip. No sharpener was included, and I don’t think it would occur to the average consumer to use one, given the basic fact that It Is No Longer 1950. If you are using a pen now, don’t stop and switch to pencils. You will get nothing but grief, and all your notes will be blank pages. Eraser worked satisfactorily."