My big problem with them is that, about 1.5 years ago, they started forming arrangements with the big MM's (NITE, TMRK, etc) whereby the MM's would take the first 100 shares of an order so that MyTrack could lock in their commission. All too often, I'd find myself paying a $15 commission for just 100 shares, and not getting the rest filled, which is certainly no way to make money day-trading. That happened more and more, with more and more MM's. I kept excluding MM's until I was down to just ECN's. If I just want to trade on Island, which is what I ended up doing, I might as well stick with Datek...
Hard work often pays off over time,
but laziness always pays off right now.