Ori is a very good video game. It's very pretty, moves very well, and is challenging at enough junctions to make you feel like a gamer.
Abilities come at a really good clip, the skill tree has some awesome stuff and opens the world well.
The Blind Forest is a great size in terms of game and world, beat it in under 8 hours with over 90% completion.
Only drawback was a couple sections that were incredibly difficult, hard to discern what to do and with some less than ideal checkpoints.