from a trader's point of view, book trader is not friendly, for example, can't define different entry/exit strategy and select it with one click, can't scale in/out. I would like TWS' booktrade to be something like ninja trader or bracket trader, make trader's life much easier, basically, trader can define strategy to scale in/out with one-click trade. so we traders don't need to run around to find some other front-end software. I'm sure IB's developers can do this