I'm about 6-7 hours into it and so far I think it's an overall good game. Then again, has there really been a bad Tales game?
The only issues I have with the game so far are:
1) Lack of details
This definitely stems from the fact that this game was created for the Wii which is not as powerful as the 360 or PS3 so thus, detail is lower. That's not to say the graphics aren't nice or anything....b/c they are: sharp, crisp, colorful. It's just that I can tell the level of detail is lower than that of Tales of Vesperia.
2) The story/acting
I don't know what it is, but it just seems like there are lots of times I'm saying to myself "um, what? Why is no one asking why this happened? Or where did so and so go..." Add to that some weird/awkward, long drawn out pauses in the cut scenes. It just seems like the script was missing pages here and there.
3) Lack of an overworld map
Now I know you do get an overworld map to view, but I'm talking about how like in ToV, you would have dungeon/city views, and then a bigger overworld view. The overworld view in ToGF seems just like any dungeon/city view. I just don't get that overall big world feel. Oh, there's no camera rotation in the "overworld" view which kind of blows.
Other than those gripes, I'm enjoying the game. Those problems mentioned above would never keep me from playing any tales game. I know they are all inherently awesome so I'll always play a tales game regardless of any problems it may have.