only negative thing I can think of is 720p on some games? Not sure if it's everything or just certain games, the PS4 is 1080p on games.
PS4 is for gaming, Xbox One is a multi-entertainment system aka PS3. Xbox One you have to pay for Xbox live in order to do anything via internet(Netflix, web browsing etc..) PS4 you have to subscribe to PS plus to play online games only, Neflix, VUDU, web browsing is all free also not all games are pay to play online with the PS4, PS4 is NOT backwards compatible with PS3 games or game saves. I bought COD Ghost for the PS3 and then bought a copy for the PS4 the campaign saved data did not transfer over but the online stuff did.