Trackpad is too sensitive to be useable. The slightest brush of the trackpad and random letters appear.
Their guarantee is practically useless. I had to return the keypad and expected a full refund since it was practically unused and it was returned in the original packaging. They only refunded $63 of the $139 purchase price and I had to pay for the return postage. I would never do business with them again. Spread the word about them.