I switched to fireline quite a few years ago and never looked back. Well I shouldn't say never... A buddy talked me into trying this new mono that came out. I don't remember what it was exactly. I tried it on one trip and stripped it off as soon as I got home and put fireline back on.
To me it is so much more sensitive and hook set friendly. Not to mention that you can use it to pull your truck out of the ditch in a pinch!