It is and it does. I personally think it's still watchable for another 100 episodes, but, the slow pacing start to show. After that, it's hard. VAs remain good throughout, the OST, albeit far from my favorite, grew on my overtime and it can add weight to some scenes. Some episodes have interesting direction.
But yeah, if I were you, I would switch to the manga. It remains great throughout. You can always watch clips of your favorite moments.
There's also "One Pace", some fan edits of the anime that supposedly flow much better. I don't like it that much because it has some weird cuts, but it exists and many people choose to watch the anime that way.