The PI is a toy that's ideal for someone new to anal play. This was my first foray into prostate stimulation and while the toy wasn't firm enough for me to achieve a prostate orgasm, the orgasm I did have was enhanced by the graduating beads on the shaft. It's a great anal toy for either him or her and will certainly be enjoyed by all.
The most helpful critical review
Easy As Pi
Pi is a pretty decent anal probe, and that's about it. While it can be used vaginally, it probably won't do much for most women and it's too soft and flexible to give any kind of good stimulation to the G-spot or prostate. The neck doesn't stay in place very well either, leaving you with just the ability to thrust the bulbs in and out.