www.mybrainhealth.org Review:

but my husband, even though self taught over the last 6-8 months, was already much more advanced. he lost interest pretty quick because it was making him do beginner stuff without the option to skip over it. he did not have the patience to go backwards and then work up - he wanted to go to the advanced playing and it would not let him..so we gave it away

We bought this product last year and finally got a chance to use it. We followed the instructions and sprayed on our roll-out awning. The greeen is gone! And the other reviewers are right, the longer its on the better our awning looks. I was almost ready to buy a new awning, so happy!