Sonic Forces is essentially just a downgrade to Generations in every way.
Controls feel worse, music is worse (for classic sonic mainly), levels are short and lacking, Classic Sonic being back at all and feeling like an unnecessary addon.

But I also can't get myself to hate it too much because I still have fun playing it (except Classic Sonic)

The Avatar is a fun gimmick and his levels are ok, and contain the best music in the game. Infinite is so edgy that he's a bit of fun, just like the whole story.