Excellent for those who know what they are doing.
This is the best trading platform I have seen for those who know what they are doing. Absolute lowest fees and commissions, easily trade multi-leg option contracts, multi-faceted order types, trade in multiple currencies, access to international markets, ability to back test and paper trade, option strategy analyzers, risk analysis... I've recently retired from over 30 years in the investment management industry and this trading platform is far better than what we used at my former employer. All the negative reviews I've read here deal mainly with the steep learning curve required to use the extensive functions and appear to be from "newbies" unfamiliar with how electronic trading is supposed to work. This is a professional level trading platform, so if you aren't an experienced trader then stay with the high fee, restrictive, "hand-holding" platforms until you're ready for what this firm has to offer.