Gentleman, I hate fanservice. Gentleman, I hate fanservice. Gentleman, I DESPISE fanservice. And I'm not without reason.
Let's say you are watching a show with great dialouge, action, storyline, or anything of the such, when all of a sudden, you get some half-assed shit animation close ups of 2D girl chest that is unappealing with cheesy sound effects added in (ranging from wobble, to boing, to "OH YEEEEEEEEAH!"). It's distracting, it's in the way, and it's just another excuse to not animate except for the same movement over and over again, or maybe no movement at all. Just another excuse to cut corners and attract attention without effort.
If I want to fap, I'll watch a hentai. In the mean time, I don't want to watch a soft-core porn that is meant to appease 10 year olds.