The biggest problem I have had most so far is when reading other code, finding the meaning amongst all of the error nil checks and the sprawling if conditions that they bring.
Another thing that makes it difficult is the preference for scattering returns everywhere and avoiding `else if`s, I read code structurally so code like this from slide 29 (http://talks.golang.org/2014/readability.slide#29) is really difficult to parse.
func finishStatus(r Result, complete bool) int {
if !complete {
return http.StatusAccepted
}
if stat, ok := r.Object.(*api.Status); ok && stat.Code != 0 {
return stat.Code
}
if r.Created {
return http.StatusCreated
}
return http.StatusOK
}