I'm on day 61 or 62, and I'm having some pretty good results. I really didn't have any weight to lose when I started, and I was hoping to bulk up some but that hasn't really happened. I think I gained four or five pounds during the second 30 days, but I lost five pounds during the first 30 days so I'm just now breaking even. I've taken several sets of photos over the last 60 days, and there's a noticeable difference when you look at my back and my arms. The pics that I've taken don't show it since I've got a decent amount of hair on my chest and stomach, but my abs look pretty good too. Despite the visible differences, there hasn't been a lot of change in my measurements. I've maybe gained a quarter inch on my biceps and maybe two inches across my chest.
For the final phase of P90X, I'm going to be doing my own thing on some of the workouts. I absolutely hate yoga and plyometrics. I'm probably going to do the core synergistics instead of yoga, and I'm going to run three or so miles instead of doing plyometrics. I'm still going to do the resistance workouts as they're scheduled. Once I finish P90X, me and a friend of mine are going to hit the gym and do some heavy lifting. I really was hoping to gain some weight on P90X, since I'm somewhere between 6'0" and 6'2" depending on which convenience store I'm leaving and I only weight 150 pounds. I found out a little too late that P90X is more of an endurance/muscle-toning workout than it is a muscle building workout, otherwise I probably would have just started lifting heavy to begin with.