I had V & E install my antenna back in 2009. Very professional installation - a team of two employees worked safely with a harness to install a tripod mount on my roof, set up a 4-bay and an 8-bay antenna, route the cables in, add a frequency modulator, and run the connection to two locations in my home.
Roof installation was very good, they wrapped the feet in some kind of asphalt wrap and melted it down with a torch to ensure full water proof seal around the mounting hardware.
Inside they tested the installation via walkie-talkie, testing signal strength inside, and adjusting on the outside until it was best possible. Got about 30 channels. Took about 3-4 hours in total.
About a year later I lost a couple of channels and Eric came out and adjusted it under the warranty. It turned out they just needed to be re-scanned (I thought I had done it, oops) but Eric was good about it and tested out the signal strength anyway to ensure I was getting best signal.
Still happy 5 years later, still getting excellent reception. Have also recommended them to another person in the neighbourhood and they were also very happy.