This has the feel of a marketing questionnaire. "Are you not ready to give a 5-star rating to Linux? Click here and we'll get right back to you!"
Oddly enough, I'm struggling to think of a single experience or feature. The decisive benefit of Linux specifically and FOSS in general is something less tangible: it's the feeling of empowerment and control you get. A computer of any kind is always something of a black box. Knowing that you have full control over it, even if you don't understand everything, is revolutionary. I'm certainly not going back.