Same here. For me it was primarily the syntax. So many people think that syntax is something you get used to, but I don't. Syntax matters a lot for me, and the way Go does it just isn't compatible with my brain.
Regular grammars are great for parsers. But really, having an easy to read (conceptually!) language is way more important imho.
But call me crazy when I say that I like C++ and can read it effortlessly :)