I still think it looks incredibly ugly, as is, and watching the videos that made it up onto Kotaku, the mine-cart stages looks cringe-worthy. That said, the gameplay resembles a cross between Sonic Rush and the legacy Sonic titles, which, while it doesn't look as good as what was on the Genesis, isn't nearly as dull and bland as what happened with the Rush series.
Still, I hope Sonic Team takes Sonic out of the hands of Dimps, since it's clear they've got one perception of the series, and hands it to someone else with a more clear understanding of the traditional games.