A pretty basic remaster with some unfortunate censorship & Denuvo 🤮, however, it's coupled with an absolutely killer new game.

If you're not intrested in Shadow Generations than I'd recommend buying the slighty cheaper Sonic Legacy Collection instead (unfortunately you can't buy the game on its own anymore) as that way you get a lot more games & can use old mods of which there are plenty (look on GameBanana).

If you are intrested in Shadow Generations:
This is one of the best Sonic games I've ever played with incredibly fun gameplay, an amazing story & lots of replayability.
Absolutely worth the price.