I have to admit that I'm not as passionate about Sonar as I was in X3. Please don't misunderstand, I love the new Control Bar, new Sends module in CV, Virtual Keyboard, etc. introduced this year. What I'm not happy about is that each monthly update seems to introduce a new bug. Although I didn't have the chance to notice it myself (because I was busy around that time), Foxboro introduced one or two Take lane issues (that affect my workflow) according to the Gloucester Update document, and as some of you may know, Glousester introduced a minor bug to the Z key (releasing it after holding it down fails to disable the magnifying glass icon), which is still present in Hopkinton. Not to mention the Control Bar module order issue, Drum Map issue, etc. introduced earlier this year. So, the most recent version of Sonar that works best for me is Everett Update 1.
The change in me is also due to my recent trial of S1v3 (Studio One 3) demo. For me, Sonar is a full-fledged DAW with a large number of bugs, while S1 is a bloat-free, easier-to-use DAW with much less bugs (in fact, I only encountered a couple of bugs in v2, one of which was a showstopper that made me ditch the program. But it seems to have been fixed in v3). S1 fits better in my laptop screen and v3's GUI looks more beautiful to my eyes. Sonar's time-stretch algorithms (iZotope Radius algorithms) are better than those in S1. S1's track layer design is a lot better than Sonar's Take lanes, but S1 doesn't have screensets, percentage-based MIDI note/velocity randomize feature, etc. It's hard to choose between the two, so I'll probably use both (but mainly Sonar, at least for a while).