I called Mr. Antenna (Sabrina) a couple weeks ago because I had purchased an antenna (from Newegg) that I began researching (after receiving) and discovered it had terrible reviews. As I was searching the internet I discovered Mr. Antenna's Yelp reviews. So I called them. Sabrina spent an hour on the phone recommending I not install what I'd purchased; instead recommending another one (which she told me I could get from various sources). I returned what I had and got what she recommended. I told her I had a neighbor I'd have install. She still spent another 30 minutes with me warning of things I should watch out for. At this point she knew I was going to have someone else do the work. What a FABULOUS person and company.
I was lucky in that things worked out. However, the total cost of my antenna installation (including antenna cost) was insignificant compared to their total cost (which included the antenna) - and they would have stood beyond their installation. IF I HAD IT DO OVER AGAIN, I WOULD HAVE SIMPLY CALLED THEM.
Even though I didn't use them, I recommend them HIGHLY. They were so helpful and knowledgeable; a wonderful company.
Read my other reviews on Yelp (mostly restaurants) and you'll see I'm not always this impressed or complimentary.
BTW, there is a video on YouTube, just search for "Mr. Antenna USA, Phoenix, Az, Installer."