I tried it, and it wasn't bad, but didn't help as much as I was hoping. I also never used it perfectly for long - I would use it all every single day for about two weeks then end up just using it once a day for a few days, and maybe canceling out all the good I had done.
It also ended up bleaching some of my favorite shirts.

I've decided that I just can't use benzoyl peroxide products during the day - I'm too sweaty I guess.
Now I use a salicylic acid cleanser and treatment (2%) in the morning, and a non-medicated cleanser and benzoyl peroxide treatment (10%) at night, and it seems to be working better. Take that with a grain of salt, though... my skin is amazingly oily and I'd probably have to wash it 10x a day for it to ever get dried out, so my regimen might be a bit harsh for most people.