@cesposito54
Well the Subaru forester has won the 5-year cost of ownership title for five years running now.
Consumer reports has ranked it the top compact SUV for 8 years running now and has very good reliability for both recent models and predicted reliability of the current. In fact, it is actually better than Toyota due to the Rav4 having some recent stumbles.
Now, I know your question was specifically about the Wilderness and that is a harder to say. I'm personally planning a purchase now and have no concerns about the reliability. This is the first time these parts have been used on a forester, but they all should be parts that have been used before on other models for some time. Specifically, I believe the Forester's Transmission and Rear Diff are taken from the Outback.
The Ascent had some early reliability issues due to it's entire drivetrain being designed new for it. That appears to be mostly worked out and that is what is used on the Outback Wilderness, not the Forester Wilderness. Regardless, I wouldn't be concerned with purchasing either right now. Just my 2 cents.