eeehhh, looks pretty average to be honest.
Sonic's has his day, no matter how much they try to bring him back through trying to make more classics they're always going to fall short. They were amazing games because at the time there was nothing like them. The only thing that can save this game is leval design.
I'm not sure if games like this benifit from having a 'go back and try again' option like he said it would have either, that's what made the early ones so good because you knew it was do or die to find the giant ring and not stuff up because there's only limited chances of getting all 7 emeralds before the end of the game. Where's the rush if you know you can go back and do it again??
Sonic 3 + knuckles is still the best sonic game