I've just started a 30 day trial of their data-only service. After three days, I am shocked by 1) consistently lagging data 2) bad ticks appearing with extraordinary regularity (specifically, I'm referring to the SPYs) Their data quality appears to be inferior in every respect to TradeStation's. Surely, this can't be their standard, else why would anyone subscribe? And yet, I hear so many complaints about them, I'm beginning to wonder. Does anyone have anything good to say about eSignal data? Please speak up!