The Japanese voice track is, in my opinion, a bit grating (it's unusual for an English dub to be better acted than the Japanese version, but I study Japanese and Lloyd comes across as being. Remaster-wise, the only big advantage comes in the anime cutscenes - and they look truly fantastic. Extra Artes, Mystic Artes, and costumes all play a part, and they are appreciated. Of course, they really should have restored the 60fps, but the new content goes at least some way to fixing that. The reason for this is simple - the remaster is of the Japan-only PlayStation 2 version, which had a cut framerate to be able to run on the PS2. But the worst example of laziness in this remaster is the battle framerate - what was 60fps in the original GameCube version is, for no good reason, only 30fps on the vastly more powerful PS3. Character models are blurry and low-resolution, and the environments are a very mixed bag - some looking almost Vesperia-esque, and some looking no better than their GameCube originals. Little of that has changed in the remaster, but the remaster itself is somewhat lazy. On its own it is easily a five-star game.
In short, it was and still is one of the best JRPGs ever made. It was lovingly crafted, had a great cast, a wonderful battle system, a good story, and a huge world. Tales of Symphonia, the original game, is fantastic and rightfully deserves a place in the top RPGs ever made.