For some people, LitRPG and/or Harem can never go wrong. To me, those basically tells me "don't have any expectations". Why? These seem to be part of the latest trend and are mass produced.
Anyways, what do you think the book would be about from the title, cover and description? "Time Travel. Pirates. Leveling Up and Crafting."? Sorta. Harem? Yeah.
Let's just tackle the description vs what I listened to so far.
Time Travel? Possibly. Unless you're a complete shut in with no internet or a phone with zero social activity, I'm pretty sure you would be exposed to some form of Marvel, DC, science fiction/fantasy books, or Star Wars. For some reason, our protagonist instantly thought and concluded that he space and time traveled to the period where pirates reigned. There are so much materials that support time travel, teleportation, transporting and etc. He shouldn't jump to conclusion that he simply time traveled to the same Earth. Oh, let's not even talk about how the whole time travel started and the continuity aspect.
Pirates? Yes, there are definitely a lot of pirates. In fact, there are only pirates and nothing else, no citizens or other authorities. I'm no pirate expert so I can't say much, but, at least, there aren't any cliche pirate accent?
Leveling Up? In a way, yes. It's a very weak aspect. I'm not saying there needs to be a full page long character sheet with many many skills. It's just poorly incorporated. I rather have a Compass Goddess who simply give boons after killing off evil non-believing pirates.
Crafting? The quantity and quality of the crafting aspect in this book is like changing a light bulb. Seriously, I forgot what the author called it but to transform a gun that can shoot twice to a pistol with multiple rounds, all you need to do is just slap on new parts. You don't need tools or tinkering or anything. They're all just snapped on. If you're assembling, sure. But the author made it sounds like the protagonist is tinkering, crafting or making big changes.
Harem? 140% Pirate girls are extremely open. Apparently, the protagonist's harem is just open enough to pull down his pants instantly but not open enough to sleep with other men while with him. How fortunately. Not much to say about it, they all got some background, more or less. But I don't really care for them. Actually, I don't even care about the protagonist either.
Plot? A nerdy kid suddenly "time traveled" back in to the pirate period with a powerful compass that gives game elements to save the world from an evil time traveler while sleeping with 4 girls. The plot is mediocre, not great nor bad. But the construction of it is not good.
Narration? Overall, it's pretty good. You don't have a ton of accents but you don't need to. But some of the female voices are...like female ogres. I know one of them was meant to be more masculine, a brutish kind of woman. But that doesn't mean she needs to be so stereotypical.
In conclusion? 1.5 stars, just between I don't like it and it's okay. The book is just poorly constructed.