The graphical user interface, dealbook, the
number of market's traded, and the cost. I am not required to subsribe to any additional live data. They also apparently have a decent daily newsletter, and forex signals if you are interested.
I am not dropping the other accts, Ib
and Open E cry, have their advantages.
IB pays interest on credit balances, and I get as many free streaming quotes as I
need.
Open E Cry has on the spot help with contracts, orders, and trader questions. And up to 10 live charts and 50 live quotes, with decent charting