When HDTV became the standard for American TV a few years ago, we discovered our tower-mounted antenna wasn't up to the task and I began researching new antennas on-line. We live in a very rural area where the only other option is a dish with a high monthly fee. Of all the sites I visited then, I found Denny's Antennas to be, by far, the most informative. It's not the slickest site on the web, but it's pretty easy to navigate and there's a LOT of very useful information. We wound up purchasing a new antenna with a preamp, a rotor, cables, and a distribution amplifier. There was a small manufacturing defect with the antenna. The fellow we'd hired to install it said it wouldn't hurt, but we called Denny's and they offered to replace it for free. We decided to use it as is and it worked pretty well. We decided a while later that we needed a more powerful distribution amp. They sent us a new one and asked that we return the first one when it was convenient, so as to not interrupt our viewing. Now, over three years later, we have a problem with a cable and a broken lightning arrestor. Denny and I have had an email discussion and he's offered to replace them. He's also offered to send along a new preamp, just in case we're wrong. The cost of each climb is more than the cost of the components and we'll have the preamp handy so it can be installed, if necessary. He hadn't mentioned costs, so I asked. He said we'll settle up later, once we know what's really needed. Based on previous experience, I'm sure we'll be satisfied with the results. The only downside is that they seem to get more business than they can handle at times and initial responses are then a bit slow. Once he responds, he's on it until the problem is resolved. That's a bigger plus for me than the initial lag. I'm very satisfied with the site and the service.