There will be disagreement about this but i don't care. lol
I'm a fireline freak, been using it sence you could buy it.
I say it's your skill level on how to use it. Advantages are near zero stretch, means instant hook-up. See you have to set your drag just a bit now that's a bit looser to compensate for no stretch so you don't rip the hooks out. Also you have to know when to go with the fish on surges. Mono to me is like fishing with rubber bands. The stretch just takes away the feel of the fish and other things. Fireline dia. is very thin. It's so strong. I think try different lines and see what's best for you.
I'm just hooked on fireline like Al Bundy is with his Dodge
h2o<----says, use fireline and get fast hook ups and learn the drag setting with it to compensate for no stretch.