The resort is very small compared to western resorts. It has only 600+ acres of skiable terrain. Fernie has 2500 acres, and Lake Louise has 5000 acres.
The resort draws skiers from Montreal, Ottawa, and some from Toronto. There are many Hotels, Condos, and homes.
Compared to many of the Western resorts, the trails can get very crowded. You often find yourself trying to get through knots of skiers, and waiting for people to clear out of the way before going.
The Gand Manitou lodge is always too crowded at lunch, and it is very difficult to find a table.
The big bump run is Expo, and this tends to be way overskied. By that I mean the back sides of the bumps get sheared verticle by endless skier traffic, so that you drop hard has you come over or around a bump. This makes the run unpleasant and difficult to ski, since you are forced into the troughs, which is more jaring and tiring.
The cover is often very thin in the better glades, with rocks showing through. If you are not on rental skis, you spend too much time trying to avoid rocks and thin cover, to get into a good rhythym.
Even on a good day with some fresh snow, by the end of the day most of the trails are very hard packed and icy, due to the large number of skiers on the limited amount of terrain.
Windigo, is a blue glade run, that is a favourite with the young kids. Because of this the bumps are very tight and look like they were made by midgets on snowblades. If you are on longer skis it is not fun.
The lower half of Dynamite is almost always closed.
The Duncan Express chair always has a humongous lift line, which makes it difficult to get back to the top or other side of the mountain. You can alternately, wait out the Expo lift line, ski down to the Lowel Thomas Chair, a low speed lift, and wait out the lift line there, before you get to the top.
One other less used way is to wait out the Expo lift line, ski down to the to the low speed Edge Chair, and then go to the top there. However that puts you way off to one side, and you have to ski down on the other side to the TGV chair to get back up to the main top area.
Basically, you have huge crowds on limited terrain, and with insufficient lift capacity on the North Side. They really need to double the amount of skiable terrain and add another bottom to top lift on the North Side.
I would not fly to ski at Tremblant. if you are getting on a plane to go skiing, I would strongly recommend going West.