We've made a prototype of a dashboard for a company, which is a supplier of multiple car manufacturers. (The company name and logo in the attached screenshot are anonymized). The dashboard is done with Reagent, which is a ClojureScript wrapper over ReactJS.The dashboard is constantly fed with fresh data and updates quite smoothly, even on the relatively weak hardware (we use a Raspi with Chromium OS).We've had no particular issues with React/Reagent, and the overall development experience was quite awesome.