I've experimented with anal play a bit in the past, but have never been completely satisfied with it. In the short span of a few days, the Aneros has changed my entire outlook on sexuality and linked together a number of unlikely experiences in my life that until now simply seemed odd or unexpected. I'll elaborate after first describing the past couple of days.
Based on recommendations I gleaned from the Aneros forum, I placed an order for the Helix. However, anticipation got the better of me while waiting the few days for it to arrive, so I looked up a local retailer and picked up the MGX to get some instant gratification, so to speak.
My first session was a learning experience to say the least. The MGX was comfortable, and acceptable to me given my limited past experiences. Following instructions and the advice I've been reading, I relaxed and began becoming familiar with the sensations of my new friend. I eventually began experimenting with some contractions, and it was not long before I noticed a strong yet intangible reaction when fully contracted. I could not identify anything particularly pleasurable inside, but the P-tab was definitely doing something for me. Finding the "sweet spot" for the P-tab definitely goes a long way in getting pleasure. (As an aside, I found the pressure from the MGX P-tab to be a bit severe, and ended up adding some cushion in the form of a soft cloth.)