I really like black clover, but the thing that is holding it back from becoming really really good is the animations, a lot of times I would be watching black clover and just see a scene that is animated so bad that I would not enjoy it.
Story-wise, the anime is very good, a lot of people said that in the beginning, it was bad, and I agree, but after a couple of episodes black clover started showing us what they got, right now I'm watching every new episode that comes out, and I'm very invested in it, I think that to all the people that dropped black clover at the beginning, just keep watching it I promise that it gets good after a couple of episodes, you are not going to regret it.
If you watched the whole series and still did not like it then I have nothing to say, because for me it was enjoyable.