I installed the Cubase Elements trial last night expecting to hate it based on feedback here. I was hoping it would tip me over into Studio One which I have already tried and like quite a bit.
I found that I like Cubase way more than I expected. I found it intuitive and easy to use. The UI layout is very similar to Sonar. The work flow also is quite similar. I also found that I really like the sound of the Cubase processing plugins. I also easily used most of my Sonar plugins: LP EQ, LP MB, Zeta+, etc.
To me, the entire Cubase experience feels more refined and smooth than Sonar. I'm surprised I've never tried it before.
Unfortunately, being pleasantly surprised by Cubase has not made my decision any easier.