It's the only program I use now. I've tried Photoshop CS2,and some other really expensive programs to convert/post process the raw files, and I've gotten the best results from s7raw.
After you learn what the program can do, and find your default/sweet spot for your raw files, it takes minimal tweaking to get a great image.
I took some flower pictures the other day just to do some testing with all the different programs, and s7raw gave the best results by far. I can't say enough good things about the program.