The one anoscope exam I did have should not have gone well for so many reasons, but despite the odds it was totally fine.
My first rectal exam was also my first gyn exam at only 16. I had insisted upon seeing a female, and there was only one who practiced in town. She was very rough and completely insensitive to the fact that it was my first exam. She didn't explain anything to me or prepare me for what was about to happen. So it was a complete shock to me when she plunged her finger deep into my rectum. Many recall the feeling of a bowel movement about to pass. I was so shocked, I wasn't even able to process thoughts like that.
My mom expressed her shock that the doctor performed the speculum exam and expressed how traumatic that could be for some the first time. I was so horrified by the rectal exam, I just said it was all fine and nothing else. I was sore for days.
I've always loved anal play, especially when it came to rectal temps and playing doctor/nurse. I never enjoyed rectal exams, though. Some doctors performed them for my gyn exams, some didn't. Among those who did; some warned me in advance, some didn't. Among those who did, no-one ever told me to bear down. I read about that somewhere and learned that made it easier. I still find them painful, though.
Anyway, I saw this GI for bleeding. He asked me to lie on my left side with my knees bent, and did a rectal exam first. It was the easiest rectal exam I had ever had. He turned his finger inside of me to feel for abnormalities, which I normally find very painful. This was not even uncomfortable. He then slowly introduced a lubricated plastic anoscope past my anus. He did not tell me to bear down or warn me in any other way. Yet I knew to take a breath and do this, so it slid very easily into my rectum. I definitely felt the sliding sensation as it entered, again when he twisted it to look from different angles, and lastly when he slid it out slowly (I think they are still viewing as they remove it).
In conclusion: if I love things in my rectum (and putting things in those of others ) outside of the doctor's office, yet don't care for them during a medical exam - that anoscope must make an AMAZING play doc/nurse toy.