Debate: Optifine Or No Optifine

Accually there are more arguments speaking *for* using Optifine, rather than not using it.
Thats are my Arguments:

- Obviously more FPS (more options in rendering and so on, most of you know it)

- Accually an better Range when "Fast Math " is turned on (But only an difference from only 0,0025 :
(Optimize sin & cos formulas)

- You can see Capes from other People (but you cant use it as an argument if im honest)