Becuase,although he's downright bad when playing Slash's solos,he's pretty good when playing Chinese Democracy or NIN material
you know that hes not trying to sound like slash note for note!! He plays slash's solos with his own touch to it!!
Some are better then others! but they don't want to sound like a cover band... its unfortunate that Axl took all the fun out of enjoying the cd for Robin, he has to be proud of his work, but on the other hand drained from it as well....