It's an awesome program. I ran it for about 8 months and got crazy strong off of it. Now that I've realized that I needed a more "football-specific" program, I switched to WS4SB, which is awesome as well.
I'm almost a mirror image of you (same age, height, weight), but I'm a bit stronger and leaner.
As far as progressing goes, it's slow and steady on 5/3/1. People bitch about it being too slow and then they stop only 3 cycles in, then they complain about how it didn't do shit for them. Those are the weak, undedicated ones. If you really want to get strong, then I definitely recommend the program. Spend the $20 and get it. You won't be sorry.