Top notch. If you are not satisfied within 90 days, send it back for a full refund. Now if the person is at fault within one year of purchase, he or she will have to wait for another unit or to get it fixed if I don't have any available to send out, also the electronic component that fails has to be available. I'll even go free UPS shipping for US and Canada for all other countries I'll split it in half with the discount I get from UPS.