I've been doing a lot of research on which direct access broker has the best combination of cheap commissions and fast executions. I'd like to get any opinions on how these two brokers compare to each other before I choose one. From everything I've read,IB seems to be everybody's favorite. It's a little cheaper and very reliable. The downsides are that it's interface isn't near as user friendly, there are no level II charts, and the "best route" feature isn't exactly the best. Tradescape's interface and order routing seem to be state of the art to me. Their simulator is awesome! Very fast and easy to use. Their smart order routing feature is also very impressive. I also like how above the level II screen it shows you which market makers/ecn's are moving from bid to ask, etc. It helps give you a better picture by just glancing at it. The big question is: is it this good in real life? If it is I think it would be worth a slightly higher commission to have such speed and user friendliness. However, I've also heard that their software isn't very reliable and the "real deal" isn't as neat or effective as the simulator. Any opinions on how these two compare?