Love my progressive lens....been wearing them for at least 10 years, maybe longer. I actually have 3 different prescriptions in the lens. It is imperative that you have them made by someone who really knows what they are doing. The last pair I had made, the lenses were "too short" to accommodate the 3 prescriptions and so they had to be remade (at their cost).
It does take some people a few days to get used to knowing where the line is, and what part of the lens to use for what purpose (close up - the bottom part of the lens, distance - the upper part of the lens).
As Mrs. Pete said, going down stairs were bad for me. Now that I have that third prescription, no problem.