I would have prefered a Micro E-mini Future that is $25/point or 1/2 the emini. 1/10th is too small and commissions and fees will be too high to actively trade. Seems like the CME wants to attract those with very little and still want leverage. I'm not a fan.
I found a statement which has the "typical" costs on micro-gold trading. I reckon the CME will implement similar pricing on the micro equities. Granted, this is nearly 3 years old, but I assume the pricing structure will be similar...
I don't see the problem with costs, to be honest, considering the smaller exposure. You pay a little bit more in fees but expose yourself to less drawdown? I am a fan, for the simple fact that the lower barrier to entry and price action will eventually feed the larger markets with more liquidity.
