Yoshi
Headmaster of Console Warrior Jugendstrafanstalt
After playing this for a short time yesterday, I'm afraid this will be a huge disaster. Maybe not sales-wise, of course. But the gameplay sucked so much that I was in shock. The game mostly played itself and when it did not, I felt like all the auto-aim and auto-direction was destroying all the effort I put into the controls.
Edit: Wii U version
I have played the game for almost 40 hours and of course cannot go into detail (still embargo), but this is just bs. The game does absolutely not play itself. This is bs for all the previous Sonic games (bar Sonic Black Knight) and definitely (if you are opposed to strictly linear level design - even morseso than for the other games) for Sonic Lost World, too. There are some speed boosters and you can use the homing attack but this doesn't make the game play itself. Even on some more "automated" (as in on-rails) levels like the second level of the final world you still have full control. In fact, I hope you try time attack for aforementioned second level of the final world, this will show you how ignorant it is to say that Sonic Lost World plays itself.
Regarding the gameplay style: I'm still sad that they chose this "momentum" (as in slow) approach instead of trying to maximise the speed found in Sonic Generations (while of course making the S-ranks much, much harder, Generations was way too easy). This is not to comment on the quality of Sonic Lost World which I am of course not allowed to, just a personal preference, because precision based platforming is something Mario will always do better than Sonic, whereas Sonic built his own (awesome) adrenaline-driven identity starting with Sonic Unleashed.