I played standard 6.0 and saw great improvement from 5.5. I played Z v Z. I went mutas and interstingly after harassing one of the computer's expansion it built like multiple spore colonies on its base and expansions (i left to defend my base and came back). It seemed like the ai responded to my mutas. The comp actually massed zerglings many times and owned my economy by rushing upgraded zergs while i used mutas to defend and counter. If the ai went more hydra then spore maybe it would have won. I won eventually with the op guardians.