It's boring, a lot of it is copy/pasted, and everything is so shiny and has too much bloom.
People say it's better than Skyrim, but Skyrim is a lot more fun than Oblivion, at least for me.
A lot of things you do in that game feel like a tedious chore and not a game. Morrowind is still the best, though.

I actually think Oblivion is the worst in the series.