I need to start this review by stating this toy is designed for biological females only (if this toy could be used for post-surgery trans-females I have no way of knowing and do apologize for the lack of this perspective in my review). Okay with that out of the way, here are my thoughts.
This toy is very simple to use and the harness is extremely easy to adjust. The harness is made from a leather-like material and therefore easy to clean and wear. It didn't pinch or move when I was wearing it either, a very important feature to me and my partner. The dong itself is made from silicone (a point I'll come back to later). There's also an elastic strap on the left hip of the harness so you can tuck the remote so it doesn't get in your way during play.
~The Dongs and Remote~
**Note: As the dongs are two different sizes, I'll use "external" and "internal" to differentiate between them.
The external attachment is "for her"; it is approximately 1.5 inches by 6.5 inches in girth and length. The internal attachment is "for you"; it is approximately 1.5 inches by 3.5 inches in girth and length. I noticed when playing with the toy that each attachment has a difference in strength/ power of vibrations. The external dong is a little less intense than the internal one. But good news is, each motor is independent from the other and you don't have to use both if you don't want to, or either.
Each motor plugs into the remote much like your headphones do with your MP3 player. Very simple to operate, turn on, turn off, etc. There is only a single power button making it a foolproof operation. If you want it on, single click and you're good to go. To turn off, you press and hold and 3 seconds later it's off. To change the vibration pattern you simply click the button once and it changes. You can rotate through the vibration patterns anytime during play and it will not stop or delay the vibrations. Do make a note that this remote uses 3 AAA batteries and they are not included in the package.
For your informational purposes, I also am including a list of the vibrational patterns.
~The Harness~
The harness is very simple to adjust and wear. It is a thong style harness with two points of adjustments. There is one on the right hip that adjusts the width of the belt. This uses a standard belting close with a pin that fits hip sizes from 32 inches to 44 inches. If you are more petite than that you might have to punch an extra hole in the belt so it fits comfortably. The second point of adjustment sits on the back right in the middle and just above your buttocks. This uses a double D link tuck and pull style of adjustment. The only thing you need to do to adjust this is just pull it down and it tightens.
If you desire to use this dong with a different harness, you'll need a similar style of belt. The harness attaches to the dong at 3 points with a double snap closure and you thread the belt through a slot on the base or sides.