The problems begin with technical issues. Simply put, The Last Remnant is a coding disaster. Square Enix may have licensed the Unreal Engine 3, the same tools used to make Gears of War, but the developers clearly did not know how to use it. There are such serious framerate issues during combat that what you see on your television sometimes resembles a slideshow. It sullies the entire experience and can even get in the way of gameplay since The Last Remnant has a critical system that requires you to perform timed button presses. The trouble continues with loading, which is laborious given the number of times you go in and out of a fight or change rooms. Once it does get loaded, you'll find awkward texture pop-in which can hurt the visual fidelity of cutscenes and kill any power or emotions they might convey.
The technical performance of The Last Remnant is so poor that I can't believe anybody considered the game finished and ready to release. Things get better if you install the game on your hard drive using the New Xbox Experience dashboard, but it is by no means fixed. All of the problems are still there in slightly less disastrous form. If you don't have a hard drive, The Last Remnant isn't worth the time of day.
Even the aspects that the near-broken game engine doesn't hinder still fall short. The animations in The Last Remnant are downright bad (just get a load of the main character running). And since Square Enix opted for in-engine cutscenes, that means you get the same lame animations during every conversation and the lip syncing is oftentimes creepy looking. During battles, the camera is sometimes placed too close to your characters, rendering them partially see-through or totally invisible. You might even find yourself looking at your character standing inside a dragon's tail while attacking said lizard. The Last Remnant is sloppy at best.