It was like Eternal Sunshine of the Spotless Mind met Groundhog day but still very new and original.
It truly is a work of art. True to the complexity of relationships, getting 'stuck' either in them or when they don't work out. I love how it delt with depression and acceptance of oneself with a bit of magic interspersed to make it both light and complex all in one.
I haven't seen a movie this good in a long while!