Mine arrived today and it is a definite improvement over the rabbit ears I was using. With the rabbit ears, I pulled in the French CBC HD station here in Ottawa, and the English CBC HD, which would usually break up now and then at night. That was it. Other HD channels didn't come in, and the analog signals were unwatchable.
With the new antenna, I am pulling in almost all the HD channels available here, and the analog ones are much more watchable. I haven't even tried to find the best location for it yet in the living room.
I was a bit sad that the amplifier had to be plugged between the cable from the antenna and the TV to work, since I wanted to avoid having another thing plugged in at that end. But if it works, it works!