I'm using it in a WPF app I'm developing internally. Unfortunately all the frontend code is still very OO (I'm handling tens of thousands of records at once in

I'm using it in a WPF app I'm developing internally. Unfortunately all the frontend code is still very OO (I'm handling tens of thousands of records at once in a DataGrid, going full functional is not my idea of a fun time here) - but the sheer reduction in lines due to better syntax, better type safety and being able to actually use my F# backend code without everything needing a wrapper to interface with C# (without being horrible to use) is a nice benefit.