I've been there once last year. Huge montains, and much more expensive than small mountains near
Ottawa (50+ for lift tickets). Not recommended for beginner. Green line from top to bottom need about 30 mins if no stop (The second time sking in my life when I was there). The black line also need about 10 mins from top to bottom with nearlly no stop.
It is very beautiful there though. If you do want to go, take your own skiers or rent them in
Ottawa. ( It's much more cheaper than rent them there)
Have fun.