He's nowhere near as bad as Schenker was at that Scorpions gig last year, but he does seem a bit... shaky. He still looks healthier than he did a year ago, thank God.
Having said that, I've never seen a live clip of Ed on top form. With his style, if he's just a little bit off it sounds terrible, it seems to me. Even the shows they officially released on video/DVD sound pretty ropey.