Adding another voice to the mix...
I am currently using 2.2 and this has been a frustration for me. I bought Sonar in hopes that it would help streamline the compositional process but have found that when I want to change a time sig for one measure that I've already recorded it messes up the timing for everything behind it. I don't think this is an especially esoteric feature we're asking for here.
However, if they can fix that, I will be extremely happy with Sonar. Otherwise, I'm shopping for a product that lets me work the way I prefer.
Jon Bryson