User blog comment:IamJakuhoRaikoben/Chapter 426: Black Heart, Review./@comment-5303512-20150330173919/@comment-96.255.231.61-20150331061210

1. It various from series to series, between anime and manga. From what I know, most of the manga translations are very good, particularly for series like Fairy Tail where they have the same translator as the official English print release working on it. Anime translations tends to be a lot more hit or miss, with various minor errors. Still, they're better than most fan subs these days.

2. I'm pretty sure Crunchyroll does not have English Dubs on it.