Waldorf PPG?? yes very nice synth for the price if you are after the 80s digital sounds.
I'm sure Waldorf still has a demo you can download.
It seems to me with all the new soft synths, i'ts harder to compare them becaue each one is unique. What kind of sounds do you want? I use the PPG as well as the Pro-5, B-4, Reality, and Reaktor. They are all very different and I don't hear much overlap in any of these synthesizers.