Positives for this one: it's glass. Once you've experienced glass, you'll own several pieces. I purchased this one along with 2 others to add to my collection. This one is perfect for a low key, stress-relieving, self-pleasure session. I thought the little blue knobs would provide some sensation, but for me the did not induce a strong reaction vaginally. I have't tried it anally yet. I suspect given the shape, it would be very comfortable and easy to use anally by yourself for either gender. If you're more anally experienced, this might be close to a long butt plug and minimal sensation without manipulation, but if you're new to anal, this would be a way to get introduced, with you in control. It comes in a nice cloth bag to keep it clean. I actually wrapped mine in a washcloth and put inside the bag just to protect it.
