Hi Guys, I had an Ivy Bridge rMBP up until the 2013 MBA came out and then I sold it and got the Air with the intention of getting the Haswell rMBP. I have sold my Air now and ordered a new 2.3GHz, 16Gb, Iris Pro, 256Gb rMBP. I am not a gamer and glad that Apple has given the choice to buy the rMBP without the dGPU. With the Ivy Bridge rMBP it did stutter under OSX every now and again. Anyone with the Iris Pro only rMBP having any issues or is it nice and smooth now? Cheers.