I think the main reason that PS+ lacks good games is that the PS4 lacks great games in general and no diversity as to what to offer the players because they can only rely on third party indie games to go "free" (at the moment. It should get better the next couple of years).
Also I have to add that I am disappointed with how the PS4 is evolving. It seems like new Xbox One updates and announcement every single week. More backwards compatability and when you buy new games like Fallout 4 you get Fallout 3 BC for Xbox One. When you buy Dark Souls 3 you get Dark Souls 1 BC for Xbox One. The Elite controller is unrivaled.
PS4 still has way better games this year. It is not even close, but I wish they'd do more in terms of the platform in general. I don't feel like they are really giving back to the players. Quite funnily their slogan actually is "For the players"
Although the single most disappointing thing is the lack of Demon's Souls remastered.Completely Unrelated: Has anyone played Stardew Valley? It is out on Steam. #1 on Bestseller and has a 99% positive rating
It looks like some sort of Harvest Moon game. I think I might buy it