I am a bit suprised about how luke-warm the response from the people here seems to be. People (me included) have been complaining about all the ballads, and the lack of uptempo tunes this year. Well - Australia has given us just that. I also like Guy's voice, and I also like the song. Normally this is not all my kind of music, and after listening to Guy on the net I am actually positively suprised! I like Tonight Again better than most of his stuff.
I think this might do VERY well in Vienna. A top 3 seems quite likely to me. Why? Australia will get some votes for being Australia. The guy can sing, and seems to be able to pull it off even in a setting like ESC. The song is one of very few up-tempo songs this year. I think both the juries and the televoters will like it and vote for it.