The one thing that really annoys me with it is the placement of the score / name at the top of the screen. Sometimes it is placed over the top of your opponent making it hard to see where the ball is coming from. Although Sega have tried to make it transparent - it doesn't always work that way and remains solid.
The game is graphically good for a PSP where all players seem well rendered.
The gameplay is good although lacking in players - a few more could have fit on the disc I'm certain and maybe more shot selection options.
Overall though the niggles are minor - I love it and play it a lot - you won't be disappointed in a purchase of this title.