According to Skytrax, MAN rates 3 out of 10 based on customer reviews.
Thankyou for posting the link to that website, T&N. What a laugh. It's hilarious. A sequence of angry 'entitled' people venting their perceived grievances and time after time allocating a very carefully-considered score of 1/10. Oh - and that's not the Manchester thread either. That's the reviews for your own beloved, although one woman does boost LHR's rating by praising it for wonderful shopping. Well that swings it, I must go there at once!
Seriously, sites like that are absolutely useless. Angry sorts who have an axe to grind visit sites like that to vent their spleens. Their marking is not rational. Their comments are naive, ill-informed and driven by rage. Contented passengers never think to post on a site like that. It's certainly the last thing that would occur to me after arriving home from a long journey.
Based on the verdicts of that website it appears that there is NO good airport in the UK. Everywhere "must be avoided". So where will these malcontents end up flying from? Is there anywhere left for them to choose? Imagine living in their world of endless rage ...