Netflix only has the first season of JoJo's Bizarre Adventure, and to be perfectly honest, I don't think it's indicative of the rest of the series. JoJo's Bizarre Adventure is a very difficult series to explain, as every season completely shifts style, scope, and genre as it follows the Joestar family and their supernatural nemeses across generations and around the world. The franchise is an absolute masterpiece of thoroughly unique art and absurdist, memetic humor that was way before its time (the manga began publication in the '80s). Just go in understanding that Part I is a very brief taster, and even if you don't like it, you should still check out JoJo's Bizarre Adventure Part IV.