I am up to my elbows in a design project and so far have found PSoC Creator to be fairly productive (actually it's better than any other programmable logic vendor software I have EVER used in most respects).
I am very experienced with much more capable design tools (Altium Designer - in the interest of full disclosure I work for Altium during the day, but this post is purely to get some help with my current PSoC4 project).
I must admit I am finding the schematic editor quite limited and difficult to work with. I did eventually by trial an error figure out how to change the template to be 11x17 which is much better.
But I still have a few newb questions (hopefully there's a good answer!):