I called David early on a Friday morning, Thursday evening my firewall inadvertantly shut itself down making my home desktop cpu vulnerable. It was soon infected with a malicious virus which would not allow me to log on at all affecting my work and essentially bringing me to a stand still. I called David out of an advertisement in the yellow pages and true to his advertisement he did send a tech out Friday afternoon. The tech had eliminated the virus, cleaned up my cpu for optimal performance (tune-up) and got my daughter's laptop to finally connect wirelessly to our network. All of this for one set price, he will be my go to guy for computer issues & upgrades in the future! Excellent customer service, prompt emergency response, one low set price, and a great employee that works for him make his company a 5 star business in my book, thanks again David! I will highly recommend his services to friends and family.