I've only used fluorocarbon a few times as main line and it does have some unique qualities. Some good and some not so good.

Low stretch, high strength to diameter, and low visibility are the pluses. The one thing I don't like is the low memory. It can have the tendency to coil off the spool when casting if everything isn't kept taught. It's similar to what happens when you over fill a spinning reel.

My buddy, the pro bass fisherman, likes Seaguar the best and he's tried most of em'.