Eh, cutscenes or ingame, voices are voices. They're not gameplay or graphics or music or something, I just don't consider them to be as important... I mean, voice acting quality does matter, but Sonic Boom's is decent enough. Yeah, they play the voice samples too often, and maybe that could get annoying, but when actually playing a game you can ignore that kind of thing I think... I mentioned Shining Force Neo for a reason.
https://www.youtube.com/watch?v=npc3ahehhio It's a good game anyway. When actually playing the game, I barely notice how much the voices repeat...