The pesimist in me says, if he's as good as some of the statements about him suggest, then where are the mancs (whose scouting system along with Arsenal's, I consider to be the best in world football & who are in desperate need of a top striker) in all this? Why aren't they showing any interest in him? Yes I know they are after Benzema, but clubs always have a secondary, 3rd, 4th, etc, target should they fail in capturing their primary target.
So just to emphasise what Emp said. Don't believe the hype until you see him in a Liverpool shirt, performing Henry feats (without the use of his hands), on a consistant basis.
Likewise, allow him a full playing premiership season before you draw your conclusions on how good or bad he actually is. Bergkamp, Henry & Pires taught me that lesson, who were all a waste of space in their first seasons in the prem.