Pros: 1200ft vertical, decent terrain variety, high-speed lifts + few lines
Cons: Lack of beginner terrain, old trolley between two bases
MSM is probably my favourite hill within an easy day's drive of Ottawa @ 1-1.5 hours. This is mostly due to the highest vertical without driving to Tremblant (a very long day trip), a good variety of challenging runs and high speed lifts that rarely have lineups.
The mountain is divided into two very separate peaks - Vanier and Cheval Blanc. The Vanier side contains mostly groomed blue square cruisers, with a few small steeper sections and a trail or two that is sometimes left ungroomed. There are a few small glade areas (hopefully they'll develop more) and a small mogul field is usually built beside Exhibition that is great for those new to moguls. The Cheval Blanc side has more advanced/expert terrain - with Outaouais, Betsy and Formidable all providing some decently steep terrain to challenge your legs. We usually spend the better part of an afternoon lapping those three trails. It's possible to get in a lot of skiing here due to the high speed lifts and lack of lineups. On the downside, getting from Vanier (where most people park) to Cheval Blanc is not ideal - you can either cross country ski a small trail, or take a mini-bus/golf cart like thing that looks like it should have been replaced 10 years ago. Still.. it's doable.
I probably would not take beginners here, as the bunny hill uses a t-bar, and there really is not a lot of progressive green terrain for them to enjoy once they learn the basics. The only greens from the top of the hill are long-winding 'transit' type trails that are really more meant to get between the blue intermediate runs and contain some flat sections.