I'm going to completely ignore the tool itself and focus on the fact that it is written in OCaml. IMHO it's a great language that's much underused and as such t

I'm going to completely ignore the tool itself and focus on the fact that it is written in OCaml. IMHO it's a great language that's much underused and as such there's a need for greater library ecosystem (what's out there is generally very good, but there isn't much). Hopefully adoption of OCaml at Facebook will grow and we'll see some interesting general purpose open-source libraries!