I have been using the aneros for almost 2 years. You often hear crazy stories on here or the forums about how some people having the greatest orgasms of their life, some of which is true, but a lot of it is over stated. Pleasure is pleasure, but prostate specific pleasure is unique. A true prostate orgasm is dry and its more of an extended plateau of pleasure, whereas wet orgasms go on the penile/ejaculatory pathway side of things.
Some sessions are duds, but most of my sessions are pleasurable, and occasionally I get a session that completely rocks my world.
After my best prostate orgasms, my hands and body are shaking and I feel very stimulated in a euphoric way. I still am horny, but I feel satisfied. They tend to come in waves, but sometimes they are one and done for me. More euphoric and tingly. Tends to be full body
With penile orgasms, I get a spike of of pleasure followed by a refractory period where I feel sort of flat. They are awesome, but its always one and done and I feel like it can sap energy. Relaxing but sedating. Very centered around penis/groin area.
I can have prostate orgasms pretty much daily, but I occasionally take breaks. If I have a penile orgasms multiple days in a row I feel like it takes away some of my energy and sex drive.