I'm going to turn 34 next month and own a wrx wagon. I have 2 kids and a dog. As long as you don't "rice" it up you should be fine. I think the interior of the 09's are alot better looking than the previous generations. As far as looks, it doesn't have the big azz hoodscoop like the older WRX's and Sti's.
Performance wise you can't go wrong with awd. You live in Colorado you need awd safety. Hope this helps.