@Nurse_Nikki I have been to quite a few colon hydrotherapists, & I've only had one where I didn't enjoy the experience. I appreciate a careful rectal exam, for two reasons. If I'm constipated, it gives the therapist a better understanding of her job. Secondly, as you mentioned, there is the lubrication. I prefer the operator to insert the speculum, because she can better tell the proper depth, and there is a certain enjoyable part of that insertion. Also, if I was a therapist myself, I would be pretty guarded around males, because most men, if they're straight, seem to choose a female.
I would say I enjoy the entire colonic experience, particularly the passivity in having the water circulated around. It's efficient. However, I much prefer a thorough series of enemas, even though less efficient. The "feel different" to me. I have often wished for a true reciprocal experience, but I've not ever really had that. I personally believe that if one has a partner, it should work both ways. A good enema is truly a gift under all circumstances.
Sounds weird, I know, but the cleansing exceeds any other feeling I've ever had. That EMPTINESS!! YAY!! Giving is incredibly erotic to me, as well, which, if you've read what I write, you already know.