If it's of interest, I have Dunlop Sport Maxx 050s. Filled the tank with E5 last time and driven 522 miles, mostly motorway and achieved 57.54mpg. My best result yet, after 6 months with the ES300. Just filled the tank with E10, and will see if that makes any difference, as I shall be doing more motorway driving over the next week.
As for road noise, I can't comment as I have nothing to compare it to. However it doesn't seem unduly noisy.