For me it's a great conversion, for me this PS2 porting is great!
On my TV the graphic is better than the PSP version and the game is very fast....this is fantastic !
But I've played on another 2 TVs at the house of my friend and the game doesn't looks good as my TV (and the differences for his 2 TVs are evident), but is really nice at the same time!
Very positive: the PS2 version contains all the ships and the track originally contained in the PSP's special packs....this is another good point for this game!
Some features of the original PSP game looks modified: for first, the Zone ships are different and for me this models looks better than the PSP versions (the PSP's Zone models looks too simple for me), especially the Feisar zone ship, very nice to see....second, the one player mode presents different objects than the PSP version, because it implements the new tracks.
I gotta repeat this? For me this version rules !