I'm among those who say that the Final Fantasy series has gone downhill since ff6 or 7. This game is no exception.
Now then, the actual review. When I got hold of FF10 I was pretty excited and was prepared for a good gaming experience and 40+ hours of fun. What I felt after about 10 hours and through the whole game pretty much sums up the review in one word: Disappointment.
Boring and unengageing story, shallow characters, poor voice-acting (US version, can't say anything about the japanese) The lack of a world map made the game feel totally linear and boring.
I got the impression that no one on Square-Enix actually wanted to make this game.
I have to be fair and say that the game actually got a bit better after the first half. That really got my hopes up but only to be crushed by the ridiculously sentimental last part.
I know that many people think this game is great and i'm not telling you that you're wrong or anything, only that FF10 didn't suit me and many other fans of the older games in the series.