I think we can all relate to some degree and logically so. By definition, most things, people, places are average.
As to why people rave about average things, it’s probably a combination of personal taste and the experiences that color our perception.
Someone may be raving about a book that’s just OK but so happens to resonate with something they’re going through at the time.
If you go to the most wonderful beach in the world, and it’s crowded like a sardine can, you’ll probably feel like getting out of there ASAP.
However, despite all the average and OK in the world, I have personally found some amazing places, food, people, wine. I hope you will too :)