Are the GTA5 ratings as deceptive as the GTA4 ratings?

[bugrimmar]

We all know how GTA4 got 10/10s across the board despite not really deserving it. Are reviewers doing the same thing over again (either they're too hyped up, are paid to write by the publisher, or the rating system is broken)? I'm holding off buying it until I'm sure it won't be a waste of time.