A functional language is not going to be appropriate for everything, and in F# you have to explicitly do extra work to have mutable state. If you're doing a UI

A functional language is not going to be appropriate for everything, and in F# you have to explicitly do extra work to have mutable state. If you're doing a UI or game C# will probably be a more natural fit. C# probably works better with Intellisense because the types are basically always explicit, whereas you can use type inference in F#. C-style syntax is a lot more comfortable for a lot of people.