While I don't have any blogs or other posts about my experience, I'll give you my thoughts on it right now.
I've been doing SimpleFit for what this week, marks 8 weeks. Since I began 8 weeks ago, I myself can clearly see results, both in the way I look (others have also mentioned a noticeable difference) and in my ability to complete the workouts as well as just more strength in general. The simplicity along with the "shortness" of the workouts fits very nicely into my work and school schedule as well.
If you have any other questions, just ask, I'll answer to the best of my knowledge. I agree that you can find many threads about results, etc, but this thread:
http://www.marksdailyapple.com/forum/thread7663.html is the one that sold me on the whole thing.