This is a great little bullet! The option for dual stimulation is extremely versatile. You can you just one bullet or both, however, using both decreases battery life. What is really great about this bullet(s) is that the bullets themselves are plastic. This may seem inconvenient, but they are far less sensitive to temperature changes, so if you don't like the touch of cold metal vibrating on your skin, the plastic doesn't get very cold and warms up quickly. Just a few seconds in your hand is enough to get it warm.

The bullets have several very interesting speeds. The basics are there, slow, medium, and fast, but there are several pulsate and alternating speeds as well. As far as noise, its a little loud. The person in the next room will probably be able to hear what you are doing. But, the vrooooom it provides is FAR worth it.
This set of bullets cleans very easily with any spray on-wipe off toy cleaner or with soap and water. It works great with any lube or stimulant.

This has proved to be a great couple's toy with having both bullets. Each bullet can work at its own speed and rhythm so each partner gets what they want! Men seem to like it in the perineum area on light vibration. The bullet is a little harsh on any higher setting for the men, in my experience.

The controls look a little basic, but function well. In storage it is important to unplug the bullets from the control because the buttons are sensitive and they can be easily triggered by light forces. If not unplugged, the toy my run at inopportune moment, like when you roommate is in the room watching a movie. The cords get a little cumbersome during use, but like I said before, it is all worth it!