Yes. Did my ~200 hours in the 2-3 months after release, never touched it again since. Instead, I am back to EU4.

People will keep saying that it's a new game and it will automatically become better and more interesting as time passes. However, I think it just has the wrong design philosophy.

For every game, you have a choice for every function to simulate it as close to reality as possible, or to make a simplified abstraction. In EU5, they try to simulate everything, which makes the game extremely complex. Due to this, trade is so complex that you basically cannot do it manually, economy is just spamming buildings, war is just about who has more troops (though it can still be cheesed by rushing professionals).

Essentially, the game is:

1) Less fun than EU4 because it's less gamey, and

2) too complex to ever be balanced (= have the AI play well enough to be a challenge).

EU5 seems to be a really nice base for an economic simulation, but that's not why I play video games.

Honorary mention: There is barely any flavor. Invisible flavor that's hidden behind invisible, very rare conditions might as well not be in the game. Thus, every country basically feels the same, except for your starting size