I can get 12 stations in Vancouver from the Oakridge area, when oriented vertically against the North.
The only thing I did not like is that you cannot turn the antenna 180 degrees without dismantling the attachment to the base holder. It is only one bolt and nut, but it can be tricky, if the base has been previously attached at the highest point of the roof I could reach from my ladder. By trying to turn the antenna 180 degrees, I accidently unscrewed the two holding bolts too much and their nuts inside the antenna felt out of the plastic groove & started to rotate. To tighten the bolts back again, I had to take apart o the whole antenna (about 20 little screws).