I just tried out brakeless this week. Observations:
If you want to go as fast as you do with a brake, it is harder. Stopping takes SERIOUS leg work, so I just tend to keep a solid flow going. With a brake, I'm more likely to charge a long green, but brakeless I will approach it at only about 10mph, lest it turn red.
Also, brakeless looks far, far cooler.