There are not so many exclusive games for the console, at least worthwhile ones. Personally, for two years, I really liked only Bloodborne, to a lesser extent Order 1886, Knack, Infamous Second Son, Drive Club, that's probably all.
The internal hard drive is not that big, and when there is less than 100GB of free space on it, I noticed brakes, for example, when copying saves to the network or to a USB flash drive. So if you have money, it's better to take a model with 1TB.
On the console, you