I have been a steady owner since Pro Audio 7, back in the 90's. While I have never tried ProTools, I have tried Cubase and Studio One. Cubase is simply not as intuitive as Sonar, and so I turned away from Steinberg long ago ... I have tried the demo version Studio One, and it didn't impress me enough to justify switching .... Cakewalk SONAR has had nearly everything I need.
They have a new ownership program now ... You can either pay in full or make monthly payments .... Being a previous owner, you will get a great upgrade price .... I opted to pay in full ... They now use a 'Command Center' application to manage authorized programs and plugins, etc ... It automatically checks for any new versions of any installed products, and will update everything in one session .... They have been offering decent monthly goodies as well ... I'm a happy owner ...
I have used a number of different pieces of software and hardware over the years ... From the old 4 track machines (I owned the 'cheap' Dokorder 4 track reel to reel - We named it the "Dodeeohdoh" recorder) to the Atari 1040ST w/Music Studio app ...
Frankly, I have never produced anything that meant anything to anybody but me ... my work is amateurish, but, it challenges me daily and makes me happy ...
Good enough for me ...
Here is one of my pieces on SC: