All the staff, and future staff here, are knowledgeable of the products and keep up to date on it also; we make it a point to know the products that we sell, thoroughly. Giving demos and literature to our customers is one of the policies that we have, this enables our customer to make an educated decision on there purchase. And also increases product sales as well. We thrive to make sure all our products are throughly inspected and that we deliver the best possible price to our consumers. Satisfaction Guaranteed.