I've been using this recently for a pretty complex SPA and it's been great. It's clear what's happening, without a tons of boilerplate code, and it has some ni

I've been using this recently for a pretty complex SPA and it's been great. It's clear what's happening, without a tons of boilerplate code, and it has some nice dev tools as well (trace element updates & events, great for debugging). It also has very useful error messages in development mode (which is a godsend). On top of that, I think the docs are pretty good, they seem to be quite active on GitHub and, from every piece of the puzzle that comes together to make a 2016 web frontend (react, web pack, babel, flow, ui kit, etc, etc), it's given the least trouble for me so far.