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.
This is by far the best mod ever created for kotor2. Cut content such as quests, dialogues and even an entire planet(M4-78) are still being restored after several years from its original release. I remember reading in an interview that the lead designer of Obsidian was impressed and thanked TSLRCM team for their effort. As for me, Kotor2 with TSLRCM easily surpasses Kotor1.