Sheila,
Ron is a dedicated staff member of the RV Forum who spend a lot of their time, for free, sharing their experience and knowledge to the benefits of RV ers.
Last year, we spent 2 hrs a the border, trying to get to Montreal; it was on a Saturday night at 7 PM; next time, we will make sure we enter during the first days of the week, early morning.
Also, when you talk about Quebec, remember that Quebec is a Province (State), and Quebec City is a Town, the Capital of the Province of Quebec. It helps to specify what you are talking about.
I agree that campgrounds in Quebec City are not the first class campgrounds we are accustomed to here in the Sates; gated, with full concrete slabs, palm trees, security, twice a day garbage pick up at your door, etc. Campgrounds in Quebec City are only open about 5 months a year; KOA for example is open from May 1, to October 15. I guess that resources are limited. We plan to use KOA this year, especially since Tom (also a staff Member) recommended it. Bernieres was fine; nothing fancy; reasonable price; no concrete, gravel roads and sites, tight, probably 70% seasonals, quiet at night, about 1 mile form the KOA, and about 15 minutes from the bridges to cross the St Lawrence river, may be 30-40 minutes from downtown Quebec City, about 1 hr from Montmorency Falls, Orleans Island and Beaupre Cathedral. At least 50% of the Campgrounds we use in US are about like that.
If I had one suggestion to visit the old Quebec City, I would go to Levis, which is just across Quebec City, on the St Lawrence River; from Bernieres or KOA, taking Highway 20 East, you should be there in 20-30 minutes. Park the car close to the Ferry for one day, then take the Ferry across to Quebec City ( the view is breath taking). You can also take your car on the Ferry boat, but you will lose a lot of time in the traffic, trying to find a parking place. Spend the day there walking in the lower City for a few hours, then use the elevator to go up to the Chateau Frontenac, the Terrace and the heart of Quebec City ( as many hours as you want to), then take the Ferry back to Levis; believe me this is a FULL day of work. You may be exhausted at the end , but you will never forget this day.