And now I'll chuck the cat amongst the pigeons by saying... If you can rent it, rent it.
It's fabulous looking, the best console game out there by.... Some distance.
It has a depth of story and characterisation that is unrivalled in gaming, it's at least comparable with serious cinema.
It's short. I'd say about 15 hours of play will kill it off for most players.
It's linear. You're pretty much on rails, there's no side quests, no meta games, nothing but the main story. some of the maps are very big and you can spend as much time as you like exploring.... But the exploration of the map is all there is.
Will not expand so as to avoid spoilers, but unless you're the kind of gamer who has to win all the trophies/awards in a game... Replay value is very limited IMO.
It is still a superb gaming experience, I just think once the hype and the initial "wow" factor of seeing something so good looking on screen dies down, this title will get some more... Balanced... Reviews.
Go onto a PS gaming site now and dare to suggest that this isn't the greatest video game title in history and you'll just get abuse, no discussion.