If your looking for hours of entertainment, I'd definately recommend this game.I had the advantage of playing and testing a friends copy before buying my own, and since buying it have been extremely happy with it!
As mentioned in other reviews, the graphics are, for a DS, exceptional, and the actual gameplay mimics versions on more powerful consoles, with no holds barred on the flow of the play or any smaller details such as player appearance. Even down to the 'real' music played during the main menu, Fifa 08 on DS continues to match its counterparts on other consoles. Feature rich and accessible, the Main Menu boasts a familiar look to previous Fifa titles, even including Create a Club and Create a Player, which re-inforces the playability of the game. In this release, there are many clubs to choose from, including not only the Premier Division sides but lower division teams as well, which is brilliant, plus teams from abroad leagues. To top off the positives, the Single- Card multiplayer really sold it for me, with the option to play friends even if they dont own their own copy. With this option, plus the Wifi capabilities of the game, which i have unfortunately been unable to test as of yet, this game becomes fun for not only you, but for your friends as well.
In terms of negative aspects on the game, Im yet to find any which have caused me to question why Ive bought the game! As other reviewers have said, the manager mode is a bit lacking in terms of detail, compared to versions availiable on the psp for example, yet I argue that this version on DS is more of an 'arcade' version, simply as it is so and easy to pick up, and not put down for a long time if the game takes you!
Aside from this, the match commentary is slightly annoying in my personal opinion, sometimes being infrequent and in no context to actual events in the game. This is one of the only aspects of the DS version which has suffered from the reduced proccessing power of the DS console itself, compared to other handheld consoles. But it is an age old niggle in Fifa games that the commentary is annoying, so I'll leave that to your own opinion!
So, if you want a game which will spend most of its time in your DS slot and not in its case, then Id recommend Fifa 08, a timeless classic bought to DS and well worth the money! Happy goalscoring!