I definitely recommend trying them, as it will be a great learning experience. It will probably even make your TS better. What you won't be able to do is to ac

I definitely recommend trying them, as it will be a great learning experience. It will probably even make your TS better. What you won't be able to do is to actually ship a product easily, as the ecosystem is virtually non-existent. Documentation - virtually non-existent especially for actually creating working products. Of course, there are exceptions to this (like the Facebook Messenger being written in ReasonML), but people tend to underestimate what kind of engineering effort went into that. If you actually want to do stuff by yourself, use TS.