Love the bodyweight program so far. Started from Level 1, couple weeks ago. At this moment, i am at level 3. Although I havent seen any physical changes, i have seen changes in my overall performance. I would recommend others to try this program.
However, the only negative thing i have felt so far is that the complete workouts take very long time to finish. For example level 3 without barely any rest, takes me about 75 minutes and I cannot afford 75 minutes every day.