Tick size is too big. should be a penny Too thick on the bid and offer. Low volatility as its an index of 500 stocks. And thats my final answer.
No problem with the ES , if its too much for you to handle then maybe you should find something else to trade, like marbles
The CME isn't going to change anything soon. If they make the ES anymore granular, it will destroy whatever is left of the SP500 pit.
For anyone other than a large trader, I think ES provides the least amount of "trading value" of the four US indexes that I reviewed briefly: http://www.elitetrader.com/vb/showthread.php?threadid=195420 Of course, you may define value differently than I do.