I am a beginner interested in trading CME financial products. I am considering Advanatage and RJO to open an account with. Advantage has low commission rates but doesn't offer any free platform. Rates offered by RJO are high in comparison to Advantage but it does offer a free platform called RJO Vantage and doesn't charge anything for real time quotes and charts. Is anyone here using RJO Vantage? If yes, could you please tell me your experience with it? Even if you are not using this particular platform but know how it is, your reply would be greatly appreciated. Thanks!