Dr. Bernard Jensen and his wife were good friends with my grandparents and used our board in their own home. Dr Jensen recommended that we change the boards color to blue, because of the soothing effect the color has. My grandfather, respecting the Dr.'s advice had our unit changed to the blue that it is today.
We stand behind our product and have for many years. We have a money back guarantee* on the board itself during the first 30 days, if you are unhappy for any reason. Also, we have a lifetime guarantee that if the board should it break during normal usage we would replace it free of charge. You will not find any other company that even comes close to backing the quality of the unit they sell with the guarantees that we offer.