This material is a soft gel-like material that feels nice and smooth, and with lube, feels close to the real thing. It is very stretchy and will fit a variety of different sizes. The far end is closed, so anyone really long will not be able to fully penetrate it, but it will stretch. This is not for really advanced users or to replace sex, but it's a good substitution when the real thing is unavailable. It also has a vaguely sweet smell out of the box.
The design is closed at one end to create suction. I don't know if it really creates all that much suction, but the friction created from the interior ridges feels nice. It stretches around my average size easily, but still grips and feels tight. The bullet adds a nice vibration to it and is located well for stimulation of the testicles when you're not thrusting.
The bullet controls are a little clunky, it has a little button that big fingers have a little trouble pressing and you do need to cycle through all the modes to turn it off or get back to one that you like. The bullet has decent power to it, but you really can only feel it when it's close to your body. The material doesn't transfer vibrations well.
Pretty easy to clean; you can't flush it completely because it only has one opening, but I found that when you're using a lot of lube, the cum just slides out when you tilt it upside down. I then fill it with water a few times and squeeze it out. A spritz of toy cleaning and then I let it lay so that water can run out the hole. This toy will probably mold if you leave water in it when you store it. I also, once it is dry, put a thin layer of talc over it so that it doesn't stick to other toys.
This is a good toy when you are just sick of your hand or your partner is unavailable and some variety is nice.