I definitely don't love Our New World as much as a lot of people seem to. I mean, it's a really nice, upbeat song, but I don't find it anything special. I think for me, part of the reason the ending loses steam is that the last few songs are all kind of middle-of-the-road (tonally, not in terms of quality) upbeat songs. It makes the ending just feel really drawn out - as I said in the survey that Implode is running, very Peter Jackson esque!
That said, I don't really get the "too many ballads" complaint that a small number of people are making, but then I can only assume people include upbeat pop rock songs as ballads when they aren't. Apart from the drawn out ending, I think the pacing is actually really good.