I have the game on PS3 (the legendary edition), never played it. I have the game on Steam, according to Steam I have played it for about 94 hours. I know I have played through like 1-2 story missions only lol. The rest of the time just doing side missions and exploring. I want to play the game more, but, while the PC version looks with the high resolution pack (official) far better than 360/ps3, the whole DRM thing annoys me. To the point I ordered it (waiting for it) for the PS4. From what I read the PS4 version doesn't have the issues the Xbone and PC versions of the remastered edition. It is the version to have, at least till the PC version gets patched. Having said that I would still prefer the PS4 version as I HATE to have with DRM (PC Steam), and I hate to to download patches for games I own a physical copy on (Xbone), especially console games which I don't know what will happen with the patches/dlc in the future when they stop supporting the console.
MY POINT is, if you like open world games, this game is a must IMO. After the opening segment of the game (the obligatory tutorial part), you are free to explore and see this world as you wish. It's just a beautiful experience. If of course you are not a fan of open world games, this might be a problem.