I definitely appreciate being able to drop into an OOP style when I find it's necessary. In a talk Don Syme (F#'s original designer) goes into aspects of OO he

I definitely appreciate being able to drop into an OOP style when I find it's necessary. In a talk Don Syme (F#'s original designer) goes into aspects of OO he enjoys, those understands the usefulness of, and those he does not enjoy. I believe it was F# Code I Love, which gives some good insight into the thinking behind the language.