Review on Mithril by Mattia Scaroni

It's loading times are very fast. This is because it's templates are compiled first and then served to the browser. You can write Mithril views in JavaScript. Small size, good documentation and doesn't force you into a predefined structure. It also provides server-side rendering, virtual dom support, good debugging tools, easy to write tests, easy to reuse components, flux architecture patterns, and extensive SVG supports etc.