Knocking Paul Potts' highs seems to be the hip thing to do. You'll see hundreds of comments in his youtube videos about it - and when you (excitedly) wonder why there are so many opera enthusiasts on youtube, you click on these commenters' usernames only to discover they are 15 your old kids who's favorites include music videos from emo band of the month.
The very fact that the man can sustain notes that high is incredible. Anyone expecting Juan Diego Florez should slap themselves in the face, as all of the great names are professionals, and Paul Potts is an amateur. No one would bash late-career Pavarotti nearly as much as Potts, but his highs were shrill and his voice was even known to break in the highest registers.
As for Paul Potts' CD, however... it doesnt sound like opera. He is singing almost quietly, without gusto, close to the mic in what feels like a very small room. On top of that, the recording is DROWNED in reverb. I'm not being a snob here, it is REALLY REALLY horrid the way they thought his voice should be corrected in the mastering phase.