I do recall alot of people saying that the 300 routine was more of a test of endurance. I don't know, I felt like it could be the variation I needed with my own routine but I wasn't sure if it was truly effective or not (no way I can do all that without a rest in between each of those exercises).

Usually I go to the gym and start off with cardio (mainly the stairmaster machine or the elliptical) for about 25 minutes. Then depending on the day, I work on my chest, arms, or shoulders (and rotate each day). After the last one I use the next day to just do an hour of cardio (I figure if I have to give my muscles a rest I might as well get more cardio in there). But other than this, I don't change it up. I just wanted to get everyone's opinion on it and see if it was worth the time or not.

Overall I definitely have seen improvements (as my summer workout also comes to an end) but could lose some more weight. Good thing my new apartment has a gym...should suffice if I ever get a chance to workout.