Well; At first, One Piece can also additionally sound too fictional in perception, but in reality, the long-term story is too ripe to be true. (Nation and Liberation) (Not too much fantasy, just move on)
long? Not really, since we get recaps of every episode, if you don't want to waste much time you can just skip and watch alternate episodes.
Story at a good pace? At the climax (first and last) the story is brilliantly paced. However, some parts in the middle are not moving very well. (that part is not important anyway)
One piece power concept. Well, Naruto had chakra.. Haki is in one piece... the thing is, Haki applies to everyone, unlike other stories where powers are limited under certain groups.
Pot? Most people are dissatisfied if a handful of people are the central characters in the story. Readers of an excerpt have the pleasure of seeing innumerable characters. Not only this! It is surprising to know that those characters are related to each other in some way or the other.
Story Direction? Many anime have a straightforward story. And it just moves in the forward direction. In other words ; Things in the future rarely have any relation to the past. One Piece is something that takes pride in exactly the opposite ideology. The story proceeds from the first conscience to the next. At a certain point in the story, links start to form and then we see myriad loops. The revelations are just jaw-dropping. It just traps the story like a volcano. This is probably one of the reasons why One Piece is such a popular manga. The curiosity to know these loops drives people crazy!
plots? The best plot is one piece. probably the best. and most mature.
Can it be guessed? No story is great if it is predicted. One Piece is so wonderful that it just trolls all the theorists who theorize about the future of the story. It's so unexpected.
Style? The genre is adventurous. And it's great. Not only that, the comedy is great and on point!
Diverse…. The characters are so diverse that's why different types of people like different characters.
Immediately! The story is just bursting as reviewers give only 4.5 or 5/5 in their reviews.
So; Just go ahead and get started!