DJ Hero is the first of it's kind and it gives a good first impression.
A ton of songs from Rap to Rock that are mixed in over 100 different ways. The only bad thing about it is that there are a lot of songs that are used many times through out (A single song may have 2-4 mixes). There are a ton of mixes done by top DJs in the game such as DJ Shadow, Yoda, and AM, That is a huge plus.
Visuals: 8.5/10
Good looking character models and environments that features a ton of different items you can use to customize your character.
Playability: 8/10
Not too complex and its very quick to learn. However the game doesnt really give you the realistic feel of being a DJ and that is pretty disapointing.
Delivery: 7/10
A lengthy campaign with over 100 mixes however the overall experiance is hurt by the lack of a descent multiplayer experiance. The main disapointment here is the fact that it costs 120 dollars ,the price of 2 full retail games, and getting 2 full retail games has a lot more bang for your buck.
Achievements: 8/10
Achievements are rather easy to get compared to other musical games, Multiplayer games may be a bit of an annoyance but its not bad.
Overall: 8/10
A good experiance for such an original game that has a ton of potential if they boosts the multiplayer experiance and lower the price tag.