It’s a great player, over 120DB SNR! and DSD if you think you need it.
Codec wise it supports most everything except Opus but is now discontinued (FiiO only sells players for the uber-rich now - entry level is US$499.99 for the M11S)
If you can get one used, they’re a great player.
I’ve heard good things about the HiBy Digital M300 - but i’ve never tried one.