I remember it was broken and there were a lot of complaints when it came out. I never tried it. I've tried reading up on it recently and it still seems rather confusing, using terms I'm not familiar with, but I assume it gets easier to understand once you start playing it. I noticed all the powers had positive CC, except Mahon, who had several thousands in negative CC. How does that work? How isn't the Alliance just a tiny little handful of worlds?
Anyway, my general impression it that PP may be great for new players. You get extra credits and access to custom weapons. But it seems that there are better weapons available if you have the credits, and once you reach a certain level of credits, getting extra doesn't seem like much of an incentive. I don't think you'd want to play PVP using any of the custom weapons.
I'm not much of a war-hawk, but do like to see criminals punished. So I'm not interested in expanding my power across the galaxy, but more interested in protecting what is mine. If someone attacks me, I will go to war with them. Is there enough to do in PP if you take this stance? Is it worth it, considering the problems you generate for yourself with other powers? Does it make the game interesting when you have nothing better to do?
I'll be back from the DWE in a couple weeks. I expect to do some experimenting to see how the changes since 1.4 & 1.5 affect combat. After that I'll be looking for something to do and wonder if giving PP a try is worth it. I still read a lot of negative comments about PP, but those may be colored be early experiences.