O.k. So I've been using Sibelius for a little over two weeks now, having switched from Finale. (Did you know Avid offers a heavily discounted perpetual license for Finale users? They do, you just have to dig to find it)
Things I love about Sibelius right now:
Everything to in the "Review" tab.
Things I suspect I will enjoy once I get used to them: All the stuff around copying\pasting notes
Thing I'll be o.k. with once I get used to: not having a floating tool bar that is full of arcane symbols
Thing I instinctively hate: all the icons in the top ribbon looking like they were designed after the mid 90s.