Yes, it is. It has an interesting plot with unique characters and a captivating world - building. The leveling system in the novel is quite innovative, which adds a lot of excitement to the story.
Power growth is a main theme. The protagonist is constantly striving to level up and gain more power. Another theme is friendship. Along the way, he makes friends who help him in his journey.
I'm not entirely sure about the exact main plot as I haven't read it fully. But generally in leveling novels, there's often a character who starts from a low level and has to progress through different challenges and levels to become more powerful, perhaps with some sort of connection to the divine or god - like elements in this case.
Yes, it is quite popular. 'Solo Leveling' has a large and dedicated fan base around the world. The story, with its unique take on the isekai and leveling - up genre, has captured the imaginations of many readers. It features an interesting protagonist and a well - developed power - up system that keeps readers engaged from start to finish.
Solo Leveling is both. It originated as a web novel and was then transformed into a manga. The manga adaptation brought the story to life visually for many fans.