I would recommend Wilderness to anyone who is looking for a really good time for 2 months and wants to make money. I sucked in the first 3 weeks, but then the whole planting Zen became clear and I was putting 2000 trees in the ground everyday regardless of the land, weather and bugs. Chapleau on the other hand is really good for learning how to deal with shitty land. Here's some info on Wilderness and Ontario planting in general. Ontario planting is a big time speed-show.
Money is to be made on good days.
If there's lot's of unscarified on the contract, don't go. People are there more for the parties than the money, which makes for good parties. I have worked for wilderness for 4 years. I am certainly not the greatest planter, but this company is extremely well organized, money orientated and our project manager knew how to manage things so there was absolutely no down time. This is a Great company with good resources and they are a good place for rookies.