There is no definitive answer to this question as the rating for Silent Voice will vary depending on who you ask. However, we can take a look at some of the most common ratings given to the anime to get an idea of what the general consensus is.
The first rating we'll look at is from MyAnimeList, who give Silent Voice a score of 8.6 out of 10. This is an incredibly high score, and is indicative of just how popular and well-liked the anime is.
Next, we'll look at the rating given by Crunchyroll. They give Silent Voice a 4.5 out of 5, which is again, a very high score.
Finally, we'll look at the rating given by Anime News Network. They give Silent Voice an A, which is their highest possible rating.
All of these ratings show that Silent Voice is highly rated by both critics and fans alike. It's an incredibly popular anime, and is definitely worth watching if you're a fan of the genre.