Purchased on sale to replace the OEM LO R cartridge on my 2018 Epixon. The performance and adjustability is an improvement over the OEM cartridge. The lockout operation is smooth and only requires a 90 degree rotation, and the compression and rebound settings have actual clicks (more like tactile bumps) as you rotate their adjustment knobs. Compression has about 12 clicks and rebound has about 20, with noticeable dampening as you go up. Stiction is slightly better than the OEM cartridge as well.
The only caveat is that IF you are upgrading OEM cartridge, the LO RC cartridge alone is not the complete package. After going through some of the exploded fork views on the SR Suntour main site, I confirmed you still need the appropriate knob (FKE421), rebound fixing nut (FKE436), and rebound dial (FEE923). All three of these parts felt high quality and fit perfectly.