A couple of years ago, someone actually paid me to try realistic test cases on all the project management demos I could snag, and whatever I could buy on a limited budget.
Things might possibly have changed, but as of then, MS Project was better, >>>by orders of magnitude<<<, than anything else in the price range of $0 .. $20,000. Including especially all the stuff that was cheaper, which was uniformly awful.
I do not recall evaluating Mr. Hemmerling's stuff, or Open Workbench.
Mike Halloran
Pembroke Pines, FL, USA