I've never had any problems with my Shimano Stradic 4000's. Love the anti-reverse. My older two FEs are still working fine but a little warn, particularly the plastic bail arm. I need to order the replacement arm. Just had these replaced when serviced about two years ago. I also have a FG, which is made of less plastic and more metal. I have the newer improved FH that came out in 2003. Has a wider spool, 50% less line twist, and a maintenance port for lubricating without having to tear it apart. More anti rust bearings. I just bought another FH yesterday.

I like the Shimano Sustain better but its a little too pricey for me.

They all come with a spare spool too.