Returned mine due to pink tint on the right side of the screen which I noticed the second the start up screen came up. Waiting for my refund to come through, will probably order the 750m version since a 256GB Thunderbolt external SSD would put my BTO in the same ballpark price-wise. Was a lovely machine while I had it though, the Iris Pro lived up to my expectation that it would make for a very quiet and cool machine with some nice battery life. gfxCardStatus is going to be my friend again, which is good since it's apparently fixed in Mavericks.