Rematch reminds me of Marty.js. I like some of the ideas about providing a createStore wrapper that is more zero-config and using something like redux-actions to make reducers simpler. I have been using my own wrapper around sagas to allow for dispatching effects.

They lose me with their idea of "models" where I have a global dispatch that can be extended, like dispatch.modelName.actionName. That's just old school object-oriented thinking layered on top of redux's functional programming ideals.