PSZero was pretty great and I've heard PSP2 is good.
However that still hasn't washed the taste of PSU from my mouth. I don't know how many of you played the ps2 version but it was a complete mess. I'm not even talking about the game itself which was pretty mediocre to begin with. I'm talking about straight performance. Playing online with a party of 4 was pretty damn painful given the immense slowdown(unforgivable. PSO always ran great and was released years prior). Playing with 6 players was impossible. Coupled with the poor level progression due to level limits (you had to play that one guardian's colony level like, 4 times before you could even move on to Plains overlord), a tacky single player experience, and inferior art design, you had truly an awful experience. To those that said the game appreciated with the expansion or the psp release: Forget it. I spent 50$ on a terrible game(twice actually, as I imported the JP version in my excitement), I'm not about to buy a new platform just to experience it again albeit slightly improved. All people did was spam plains overlord all day anyway. None of the other quests were ever played. Ever.
Solid to Good portable experiences aren't enough to redeem what used to be the ultimate home console experience in online gaming. Plus the art direction for the portable games is wretched. Please get your vampires and anime trash out of my Phantasy Star. Bring back the slick designs of PSO!