I have to say that this system has worked pretty well for me. I traded out of a trip that got in Christmas day for an earlier trip this month.

I'm a junior line holder, and although most of the time it does say 'no coverage', most months I've improved my schedule.

My advice is, since the program looks at all possible combinations to make a trade, put in all your wishes. The more people that use the system, the better it works.