I have seen some comments about Act 2 not living up to Act 1.
I initially felt the same way, but then I thought it might be because I was listening to the whole thing, and frankly, after listening to Act 1, listening to Act 2 is a bit of a chore.
So this past week, I just listened to Act 2 over and over again. And I can tell, it is fucking awesome. Pretty sure I like it better than Act 1 now.
Act 1 seems a little more melody-based to me, but Act 2 features some kick-ass songs. 2285 Entr'acte is a great intstrumental, and Moment of Betrayal is great, of course. The Path That Divides is a killer, killer song; it seems the most "regular DT" song to me, and could have been on any other DT album, and I think it will come off insane in a live situation. The Walking Shadow/My Last Farewell are two fantastic songs back-to-back, each incidentally featuring awesome JR synth solos. And then from Hymn of a Thousand Voices all the way through to Astonishing is just glorious.
I also like, after listening to Astonishing, letting it cycle through to listen to 2285 Entr'acte again. Just fantastic.