I'm sure having greater liquidity will help some, but I don't think they're that close to ECN levels yet.
They still really widen the stops around news releases and also frequently have server freezes - often around news releases, sometimes just randomly.
I can say that they haven't seemed to hunt my stops, so they aren't totally bad.
I am happy that they are at least trying to improve rather than just bragging about that best bucketshop award they got previously.