Original: Very original, as nobody's ever made a brand new T-Rex before.
Quality: No glitches, everything works fine. However, Lara's death animation wasn't included.
Useable: Everyone loves a good T-Rex, and with all the new levels with high-res textures and meshes, this will fit in perfectly.
Custom Textures: All from TRA of course, but they've been cut out and mapped onto the T-Rex perfectly. However, the eye textures look a little bit stretched.
Custom Meshes: The new teeth and claws look fantastic, however some meshes are still a bit blocky, in particular the hands and feet.