We were fortunate to stay mid-week when it was not too busy. The seasonal area is jam-packed, but the overnight area where we stayed was much more tranquil. Unfortunately, this well-equipped campground is close to a major highway AND one of the largest trucking companies in the nation with a 24/7 operation. Needless to say, not a quiet experience and quite pricey, too.
Very friendly. Park overall is very clean. Nice clean showers and private toilets. We visited July 2016.
Although the campsite was pretty crowded, it was a very good experience - nice and helpful people and clean restrooms. The shuttle to downtown Quebec runs a couple of times a day, for 15 CAD.