Metz 58 on the E520 vis a vis the Fl50r

I am looking for a new flash to use with my E520 camera, has one use the Metz 58 with this camera, please advise on the compatibilty with E520 and how use friendly are the menus on the metz vis a vis the fl50r

I have a Metz 48 and it works just fine with my E510, but I never really get very technical with it.