The Infamous series is simply amazing. But with a title like this, it may divide the fans, given that this story has a different style and every character is different from the past entries. But in terms of gameplay, it is still Infamous and I loved every moment.
Several things are done better in this game, other than the graphics. The gameplay feels more fluid. For the first time, you can shoot energy from you hands without having to aim. Parkour is much easier and more satisfying although I miss sliding on power lines. Boss battles, however, are just as great.
The major cons here, however, is that the game feels a bit short. A 10 hour story isn't long for an open world game and there's not that much to do otherwise. Some side activities are good, but there isn't as much as I would like to be. That is the main reason 9/10 is as high as I could give it.
Other than that, this is a must own title for PS4 players. It is my favorite title that I got free with PS Plus and arguably my favorite Infamous game. While not very long, the main story is amazing in my opinion, and the characters really grow on you (even though the main character is polarizing for some). Gameplay just makes you feel like a badass overall and you can get creative in not only the combat, but traversing the city as well. And it's a nice, big, and beautiful sandbox to explore.
If you own a PS4 and have not played this yet, do yourself a favor and play this.