Before I started running with the Nike iPod Sport Kit, the site seemed rather nice, though a bit overloaded with flash.
After running a couple of test runs I noticed that the 100% flash site isn't really the best way to go. It doesn't remember your settings and you have to log on every time you visit. Going in through iTunes doesn't work every time, either.
You'd think that there'd be a non-flash alternative, but no. Even though I personally like the animated graphs, I'd be happy if the site "just did it" and worked! Anyway, I'm still happy with the product.