When they had a free room I traded with them for a couple of weeks. For me it was good education because they don't scalp it for ticks. They normally trade for bigger moves. I don't have time to day trade now, so I trade options with them. I have been on their option list for some time now. They have been giving the trades away for free for over six months to people who knew about them before they launched the site.
I don't have time to trade the ES with their chatroom, but if they are giving a three day trial it is probably worth a shot if you trade the ES.