Grand Theft Auto V is a third person (and now optionally first person) action-adventure open world game for PC.
Pro Well optimized
There were many reservations as to how well Rockstar was going to optimize the game for PC, as some of their past games had a lot of trouble in this area. Luckily it looks as though the game has been optimized quite well with the specs being quite reasonable in order to achieve 60FPS in 1080p on the best settings.
Pro Game saves can be imported from console versions
Players that have game saves on their console versions can import the save to the PC version, this way they will not have to start the game over from scratch to enjoy it on PC.
Rockstar has a support page specifically to transfer the saves.
Con Forced Rockstar Social Club online registration DRM scheme
Rockstar Social Club is a forced online registration and DRM platform that will not allow one to play the game without first logging in to it. No internet connection, no play. Forget the password to the account three times, get locked out. All hindrances to paying customers that in no way will stop the piracy of this title or effect pirates in any way shape or form.