I am using those.
using Chrome + React Dev Extensions
setting up sourcemaps to work properly is quite a pain though, most the browserify tooling via gulp or grunt does a pretty poor job of it.
I only get proper sourcemaps if I use the tsify plugin + setting browserify debug=true. adding anything else causes sourcemaps to go out-of sync. That's OK though, as I get good sourcemaps in development and can live without it when in production.