I have ridding a lot of norther Ontario and a few regions in Quebec including Gaspe twice. Gaspe is a definite "Must do" or "Bucket List" trip. The scenery is the best I have experienced sledding.
Trail grooming is typically good.
In all my trips, I would say there is less traffic in Quebec
I typically like their signage better than our "Slow" and arrows. Sled Junk's description was bang on.
Hospitality is great.
If you have never gone, go and I guarantee you will be back.
This year, I ended up riding half my season's mileage in Quebec and half in Ontario.