I do mine every spring, it's not hard. Just remember Subaru's are a diagonal system and the order is not what you would normally think. I also like to get speed bleeders on my cars to make it easier. If you don't want to get those, you don't need a fancy power bleeder one of these work well:
and you can get something similar at any local automotive store. We have some details here:
In the end I usually have one of my kids or wife help push the brake pedal. I don't mind the old fashion way.