Skytrax certainly seems to attract a very large number of poor reviews for some reason. I see that LTN averages 2/10 from all reviews, STN 2/10, LCY 4/10, LGW 4/10, LHR 4/10 and surprise, surprise SEN 6/10. I suggest PiiR's keeps well away from those other airports' reviews as he hates reading them so much.