I really like Sonic Forces. It's kind of like a modern Sonic game mixed with an Adventure Sonic game but wasn't fully realized.
The story definitely feels underdeveloped and I feel Infinite wasn't properly utilized, but what's there is still good and I really like Infinite and hope he returns in future games.
Forces looks amazing and the level design is solid. I love Capital City where Infinite manipulates you and the level as you play it.
The custom character was way more fun than I expected. I really enjoyed customizing them and trying out the different weapons. Their stages have amazing music too.
The free Shadow DLC is great too. It's good to play as him in a main game for the first time since Sonic '06.