I had a great time at La Ronde - sort of like a Six Flags in Montreal. The ticket prices (~$50) were so much cheaper than what I was used to in Florida at Disney and Universal (~$90) that it seemed like a bargain.
And they had a ton of Roller Coasters! I'm a coaster junkie, so this was awesome. We got to the park around noon, and had plenty of time to ride all the coasters and a couple of other small rides before it closed.
I think Vampire was my favorite, although there was a problem with it while we were standing in line, and we frustratingly watched several coasters go by with no one riding them.
Le Monster was in fact a monster wooden coaster - and there are two tracks you can ride. There's two lines too. We tried to be smart and get in the line with less people in it, but we soon realized that our side was operating only one train at a time, while the other side had two going, and moved twice as fast as our line.
There was another coaster - Le Cobra, and it was just awful. It jerked your head around so much that everyone we got off with was complaining of headaches. They need better head rests or something, it was redic.
Goliath was a crazy coaster, like a wave - up and down over and over again, with one turn at the end to send you back.
Ednor (the lochness monster?) Was a quick but fun coaster, with lots of sharp turns and inversions. It reminded me of the dueling dragons coaster at Universal in Orlando.
We had a lot of junk food - beignets and poutine - at La Ronde, but nothing was incredibly memorable. Oh yeah! We weren't allowed to ride the carousel because we didn't have any kids with us - uncool!
It was mostly a really fun day though. You get incredible views of downtown Montreal over the river from the top of some of the coasters, so go ride your heart out!