The 4k quality for Netflix is really nice and they offer most if not all of their in house stuff (House of Cards, etc) in 4k. I don't use it for much else.
I didn't even notice they upped the 2 t.v. HD plan to 9.99. I'm currently paying $7.99.
I guess my only complaint is eventually you run out of stuff you really wanna watch on netflix...... (And Kodi has everything).
I'm ok with having those there's nothing on here moments at $7.99, less so at $9.99, and even less so anypoint up from here increasing equally with the cost.
As with everything tho, they are up to 43.7 million subscribers and are going to maximize their window while they can.