TSLRCM tries to fix to the best of our abilities the issues The Sith Lords had due to being rushed. Containing a host of restored content and fixes many bugs left inside TSL giving you the most polished and best possible chance to get the full experience.
You'll seldom see such dedication in a mod. Lots of work went into this and it shows. I've played earlier versions of a different "Restored Content Mod" and it was very broken and unfun. I've played roughly 14 hours of the game with this mod and I haven't had any issues at all. All of the restored content is great to see all of these years after I first played The Sith Lords.