Not much to say about the CPU, as it doesn't affect gaming performance hugely, went with i5 over i7 for best value, and am very happy with the decision.
However, with intel aiming the "K" series skylake cpu for overclockers I must say I am very disappointed. I'm only able to OC the cpu to a maximum of 4.2Ghz and I even need to give it 1.275V for it to become stable.
Currently clocked at 4.5Ghz at 1.31volts, my chip seems to be a little touchy, where putting it to 4.6Ghz seems to not fair so well. And putting it below 4.5Ghz at 1.31Volts, does the same.
I can't even go to 4.4Ghz on 1.31, It only works for 4.5Ghz. I don't know, don't ask. It's stable, and that works for me.