Beautiful game. Chill, laid back experience. Sometimes the control is a tad frustrating, but it isn't often, also, it's expected as it does a lot of things with physics, grabbing, jumping...
My only criticisms is that narratively it feels a bit all over the place. As, it wants to be an ico-like, very minimalist experience, but then it dumps you 200 words written letters every 10 minutes, and I'd have preferred a more in-world approach to the narrative.