Two questions for those with significant experience developing in F#:

1. Have you tried using JetBrain's Rider IDE for that and, if so, how deficient your experience was when compared to using Rider for C# development? If, alternatively, you have used VS Code for F# development, how much support is there - generally and when compared to Rider - in terms of both language features and external frameworks/libraries (Fable, etc.)?

2. Could you quantify both quality and productivity gains from developing a complex system in F# versus developing it in C#?