Anytime you put down a piece of writing and your experience was anything less than positive, then that author has failed.

Good content writing should always fulfill something in the reader. It must impart something; be it knowledge, entertainment, or emotion. How well it executes this will decide the reader's ultimate impression of your writing, the vehicle for the information you've just imparted.

And this is important. If a reader doesn't like the impression they've formed, they likely won't come back.

Just ask anyone who's tried reading the instruction manual.