I think that this product suffers, because people forget that its a HANDHELD game. That being said, this game is really good.
The gameplay was a bit of a bear to get used to (see my GoldenEye 007 DS review), but if you use that "thumb" stylus that comes with the console, it makes the control seem more like it's larger brother on the major consoles.
Again, being that this is a handheld, the graphics are good. It reminds me a lot of playing Tomorrow Never Dies on the PSX. The sound is good, and you can hear Judi Dench, Daniel Craig and Joss Stone really well. The only problem is the actual voices. They sound "tinny" and "distant." Bear in mind, they had to use certain sound compression techniques to pack a large game on that small DS cartridge.
The game itself is REALLY challenging, with stealth elements, driving elements and taking down a helicopter with an RPG (when he can take down your health like nothing). If anything, the game is decent. I haven't really tried the multi-player (mostly because there isn't many online with COD MW3: Defiance out) but it plays much the same.
Overall, this game rocks. I would love to play the XBox 360 version, as many people on here say it's good.
yes: I recommend this product