When you start reading action genre manhwas, you start to notice that most of the manhwas have some very common elements.

1. Overpowered main character (mc)
2. Badass mc
3. Rpg kinda platforms which is the very base of the plot
4. Predictable fights

Even though many of them try to create a different approach, the very concept, characters and the progression of the manhwa fails to hide these elements and thus they become "generic from unique" at some point of the story.

Solo levellings concept did create a successful unique approach with a good potential to present a great manhwa.

The main character who is weak but full of determination to fight and struggle, well written characters, antagonists, support characters etc etc is what readers want to see mostly in stories that fall in "weak but i want to get stronger" criteria.

The manhwas first impression to be honest is quite good. With pretty good visuals, artstyles it easily attracts the readers. Even though these kind of artstyles have become quite common in modern manhwa industry.

Solo levelling did have the potential to turn into a great story. It had all those elememts to create hype, add an unique perspective for this kind of rpg based plots, quite enjoyable. BUT.

Things go downfall after 30 or so chapters. All these hypes and stuff u feel quietly vanishes away as u read further.

The story goes from "unique" to "generic". From a determined mc we see a him turn into an Over powered, badass character fighting and winning every time, no threats, struggles, potential antagonists, development scope. Basically it turned out to be a recycled rpg.

Theres nothing unique or even good left now at this point of the story rather than the artstyles which obviously made the manhwa get more attention the it deserves.
And if we just care about the visuals and throw away the plot, progression, the characters development then we can easily rate it 9. But in the end of the day the story has turned " GENERIC"

Still theres some hope left as the manhwa is still ongoing and there are some clues in recent chapters that the story might get better than its current state. I do hope it gets better but till now. This manhwa is just a recycle rpg plot with a badass op mc. Pretty generic if you ask me.