First 500 shares .01, above that on the same order .005 per share! No fees passed through from ECNs or NYSE (as far as I can tell). .01 IS .01. No volume needed to get these prices, no desk fees. That's why IB is still the best. I could care less about customer service, I've called the help desk once in 2 years, and I don't call to bi**h about fills.
They offer L2 now for an additional fee, but their quotes, L2s, and charting? I don't like. I use another quote provider.