my current i7 has maybe 2 flaws, thats just high pitch brightness problem i quite used to now plus brightness on quite low so don't notice as much my preferred brightness as well and maybe noisy hdd, but looking around problem just seem practically the same in the new refresh model just been debating to self is it worth messing round for the slight bump and chance of getting a machine that may have more problems like the yellow tinting which would just pee me off current i had 2 imacs altogether first one was marked but no yellow tinting and current one no yellow tinting.