So I posted the question below on a few sites and thought to post some of the comments I received.
Quotes regarding the cons of using the f-bomb:
-Some people just can't stand the word.
-Could offend some readers.
-"Shows a lack of discipline in a character."
-"Profanity is a small mind trying to express itself."
Quotes regarding the pros of using the f-bomb:
-Necessary for realistic character building.
-Most readers fine with the word if used in moderation.
-"A reader who can't tolerate an occasional swear word in context is an illiterate in moralistic clothing."
All in all, this has been a fascinating conversation with lots of thoughts and opinions. Love it!