Not sure what's wrong with Rees, but I believe he's been out for several performances.
Tom Nelis did a very commendable job. It was a bit jarring to hear the character with an American accent, given I am very used to Rees in the role. Nelis is obviously a much better singer, and the songs did sound better with his voice. He also manages to get more laughs at some of his lines. Rees uses every fiber in his body to portray a broken man, and I adore his character choices. Nelis plays a stronger/less broken man, it works, but I do ultimately prefer Rees in the role.
Chita keeps getting better and better. Hopefully there were some Tony voters in the audience tonight because Chita really delivered. Audience was VERY receptive, and the performance received more laughs than I've witnessed in the past.