If you are a weekend yahoo rider that needs a lot of attention and needs to be cool, ride somewhere else because you will not encounter a lot of spectators. Durham and Glen Major are not well mapped and you can easily get lost. The ridding is great, but make sure if it's your first time to bring a map or compass. I got lost once in ther for about 2 hours. Busiest time is the weekend, but it's not crowded.
People are nice, occasional hickers.
It's everything you need to enjoy a day of mountainbiking in Ontario. If you know the trails, you can combine them to create a great workout. Some nice downhills that last for more than a while. It can be damaged by those riding during rain, so a little bit of discipline should be used by overzealous riders. Lots of hills of all descriptions, some long and tough, others short and nasty, lots for riders of all abilities.