I have been told that function is farther from CS and more towards AD (90% of AD) functionality. The file formats are the same as AD and designs can be worked on both platforms.
Good grief, not yet-another-format variant, with fall between two stools risk...

Mentor tried this and failed badly, as the 'crippled' version removed ASCII import and export, purely as turf protection.
Such Turf paranoia usually drives these things, and you might find for example, a feature enabled in AD cannot be disabled in CS+, because the menu is removed !! I'd be very wary of claims like "designs can be worked on both platforms", especially if they pitch as a third product.
I am going to be demoing the SW PCB this week. I will try and make a fair comparison. I have not used circuit studio so it will be difficult to evaluate where it will fall in features between AD and CS.
Can you install a CS eval, so you can check how they differ ?