I work at one of the largest Haskell-in-production companies in the world There are issues outside of the actual authorship of code you need to take into accou

I work at one of the largest Haskell-in-production companies in the world There are issues outside of the actual authorship of code you need to take into account if you want to choose Haskell. I'll leave it at that. It's a fantastic language undoubtedly. But if you've never experienced the maintenance and upgrade of a very large Haskell codebase over a period of years, especially if you have a big dependency-tree, and need to interface with external tools (database drivers, etc.) I'd urge you to talk to someone who has for a view into the experience. Also ask about the state of things like profiling and compiler bugs/memory leaks. EDIT: I want to note that the state the general Haskell ecosystem/tooling has improved at a dramatic pace in the last ~3-4 years, with the advent of HLS and recent GHC releases.