I tried the most rated guitar pro tab before, I looked over it again, it had some difficult upside down chords that I saw only in one other song I tried. On the pre chorus. I never tried to play it with the song so I don't know if it's correct. I looked at 2 other normal tabs also on ultimate-guitar, they seemed different but I guess that's the question.
You can use Tux guitar to play the tab, it's a free tab player