I'm a casual Rock Band player and haven't tried a GH game since the original release on the PS2 and the first thing I notced was how tough GH:M is even on lower difficulty settings. While in Rock Band I can easily play guitar and drums on medium, Guitar Hero pushes me down to easy. One of the first songs we played (due to the alphabetical order of songs in band quick play) was Battery, which nearly killed me on medium drums.

But the strangest thing is that I really don't mind it being that much tougher than Rock Band. It is a more hardcore game of the genre and is more about scoring mega points and honing your skills rather than chilling with some buddies on the no fail mode in Rock Band. Or maybe the fact that my favourite band is finally in a RB/GH game (with some decent songs) makes me happy. 

Oh yeah, one more thing. I really like the fact that all of the Rock Band peripherals (except the mic for some reason), the original PS2 GH guitar with a PS3 adapter and even the wireless SingStar mics are compatible with the game!

Thumbs UP!