I've been playing solely Chopin for the better part of 3 years. I started on Preludes, now I stumble through Nocturnes and poke a bit at the Ballades, Etudes, and Scherzos.
People really need to learn about Chopin's music. There's juts so much to unpack in each Nocturne, each Ballade, it's truly incredible.
I started from very little skill, but by practicing Chopin almost daily I have gotten much better at sight reading and gained a new appreciation of his music.