I have used Studio9 Plus for its life and have been okay with it, no, it is not a professional grade of software but then neither am I.
I purchased Studio10 Plus and found that most of the new features are good and nice to have but and a big BUT is it is very slow (and I do not have a slow machine or not enough memory). It wants to background render continually and even when background render is turned off it still does. What this causes is very slow response to any input you want to use while editing, click on a menu and wait 1-4 seconds for it to open, etc.
I went back to version 9.4.3
My advise is to wait until the first service pack is out then try it.
