Neversoft has really outdone themselves when it comes to presentation. The major draw with GH: Metallica, or really any GH game, is the music and GH: Metallica doesn't disappoint. Developer Neversoft obviously has a pretty good handle on the game's target audience and, in turn, has crafted a song list that goes right along with that group's tastes. Obviously, most of the soundtrack is composed of Metallica songs, though you'll also find offerings from groups like Bob Seger and the Silver Bullet Band ("Turn the Page"), Suicidal Tendencies ("War Inside my Head") and Alice in Chains ("No Excuses"). Nearly all of Metallica's big songs are included; there will undoubtedly be Metallica fans who will cry foul at the absence of one or two songs, but overall, the set list does a good job of catering to both the hardcore and casual Metallica fan. GH: Metallica doesn't support DLC, although the "Death Magnetic" DLC a few months back can be incorporated into the game.
GH: Metallica retains the series signature look; everything has an over-the-top "cartoon" look, but also retains a more true-to-life feel. I don't know if it is a side-effect of the license, or just a maturation of the series in general, but all of the characters feature a slightly harder edge that really works for the game's feel. Hopefully, this is something that will carry over into future games. The models for the individual band members are particularly impressive, especially when you take the time to really watch what they're doing on stage. A lot of the musicians' smaller mannerisms have been worked into the animations, adding a sense of authenticity and style.