So I'm only on the second island. But still I'll use no spoilers. - Most of the cutscenes are just characters spouting exposition and saying nothing of value. At least in Amy's scenes. Really short scenes dedicated to world building in a shallow way and not really telling us much at all about the characters. Some scenes are better but they are rare. - So far, Sage is very uninteresting. She just spouts cliche AI lines and doesn't seem to have a personality. Maybe some twist later will save it but I'm not buying it at all so far. On a more personal note - I personally find the very dark themes of Amy's Island very jarring and baffling. I accept that's a matter of taste but I really don't think it's a good fit for Sonic.