I love it, and was introduced to it by a girlfriend. I was always putting stuff in her ass, and she thought it was only fair to return the favor. Since then it has been a staple in my sex life with all long term partners.

It's an acquired taste. A much more complex stimulation than what the penis delivers. Which is why it is off-putting for guys, in addition to the mental aspects of humility and the submission of being the receptive partner.

I like it because of the sheer pleasure. The primary modes of that is the holes stretch factor and the prostate. Though I love it, it is challenging. That's what makes it rewarding.

It is an inversion of normal male sexuality- instead of trying to not cum while having sex, it's the opposite you can let yourself go wild (once you're warmed up), and the pleasure is so intense it can be hard to stand. The temptation to eject out of the experience by touching the penis and having a penis orgasm can be hard to resist. We men are not accustomed to pleasure that makes you want to scream. And the prostate delivers that. It took me some years to finally achieve prostate orgasms, and they can be earth shattering. However, the Pspot orgasm is not necessary to have deeply fulfilling experiences.