Hi. I'm new to Flyer Talk, but have a bit of experience here. I paid for Chris's services for about 6 months before canceling (after realizing I had the basics down and could be better/faster updates about mileage opportunities from blogs and forums). Many of the earning opportunities are related to taking surveys, test driving a car, etc. I bet it may have been realistic to say you could get 25,000 miles through a survey site if you devoted 30 minutes per week to doing surveys (which, I remember correctly, is what THC says you should devote to the hobby). I would expect you'd be unlikely to get 25,000 miles from one offer, but if you found smaller offers (like the surveys) and committed significant time, it would add up.