Despite some problem with installation unintuitiveness, Parallel Studio is awesome. I had some (rather) small image processing GUI app that I develop for a project and it was running quite slow (processing takes 1 second per frame of video). So I decided to give Parallel Studio a run. I was delighted when it points me to the right source line that was taking much of the time (some debug output that was hogging the disk IO). I made the change and voila our app is now almost 10 times faster.
Then I gave memory checking a try and discovered several memory leak problems in a code of another developer in our team. The problem was promptly fixed.
Just want to give my thumbups to you guys for an excellent work. The GUI is very easy to use in my opinion. Can't wait to be able to make a purchase on the release product.