Isn't the English one the worst? Or one of the worst?
Well, the official English translations of the books don't have shit like "Ermion", "Blackjack" or "Sile de Tansarville". So they're not that bad.
To Coral I was indifferent, just like to the whole SoS tbh (Sapko you can do better, really)
That's probably the main reason why you didn't much care for the book. When I read it for the first time, I didn't like Coral and thought that the book was kinda meh. But now, after rereading it...Coral is great and the book is great too. Maybe I just can't deslike a sorceress for a long time?