But did you try Elm? Must say it's syntactically much sweeter than TS.

Depends how good people you want on your team. If your bar is low, then you might find enough people above the skill threshold that care about your product, but there are plenty of good craftsmen who couldn't care less about your IPTV offering or some other SaaS for housewives, but who would put their skills to great use for either, just because they do care about how solid is the technical part.