I think the game is really solid, the base game was probably the best base game experience for any borderlands game imo. It's definitely worth $20, chaos chambers are a ton of fun. My complaint is the dlcs were very lackluster and with them constantly raising the max chaos level, it killed the good build diversity that the game had at launch.
I played a ton of Borderlands 2 and reached level 80 and played Borderlands 3 at launch, but I completely forgot Wonderlands existed. Maybe I'll play it some day.
It’s a fun game, never had issues. But I highly recommend playing with the Wonderlands Redux mod. It’s a total conversion mod for the game that just makes it plain better without changing anything crazy.
I liked it, I think that an overt overworld with a different scale was an ambitious design choice even if the overall aesthetic isn't as interesting as the trailers suggest. Purely gameplay wise it's on par with borderlands 2 and 3 IMO