Oh, that's a tough one. I see these novels pop up everywhere, but a lot of them follow the exact same blueprint: modern city setting, some guy with a secret technique, a bunch of arrogant young masters to slap down, and endless auctions for magical herbs. After a few, you start predicting every beat. The cultivation often feels like a video game stat sheet, just numbers going up with no real spiritual depth like you'd find in 'I Shall Seal the Heavens' or 'Renegade Immortal'. They can be fun as popcorn reads, but you won't miss much if you skip them.
Honestly, your mileage depends entirely on the author. Some are pure power fantasies with no plot, while others actually weave in clever social commentary about wealth and class through the cultivation lens. I'd say pick one with high ratings, give it twenty chapters, and if the system feels too game-like or the female characters are just trophies, drop it. My friend loves them for the cathartic face-slapping, but I usually get bored once the MC starts his pharmaceutical company or whatever.