I chose to get this as something that would both be sexy and comfortable to sleep in, and I wasn't disappointed.

Appearance
The front is really nice, and it does a good job of hinting without revealing. The fabric is mostly see-through around the breasts and crotch. The stomach triangle makes it a solid piece, and it's more see through than the picture would indicate. The back (not pictured) is also nice, but a bit less sexy. The only thing back there is the knots holding everything together. There's one string around the neck, another high, and a tie it yourself g-string.

Material/Cleaning
It's made of nylon and spandex, so it's both tough and resistant to picking up oils and smells. It's all one piece, and the strings are attached solidly. Washing it involves hand washing with either cool or warm water. Use a little laundry soap and it comes out perfectly clean. Size-wise, a SM fits my 5'1", size 6 frame with plenty of string to spare. It can also stretch out and reform, though it'd be better to get a bigger size instead of trying to stretch if you intend to wear it for a long time.

Wearing
It's really comfortable to wear, and getting it on and off was easy. The feeling is best described as silky, and it doesn't itch or chafe. I liked that the g-string back could be untied separately, since I could sleep in it without having the feeling of wearing a thong. It does a great job of blocking body heat, but it's easy to feel other sensations through. It does feel a bit like wearing a swimsuit, but not in a constricting way.

Packaging/Storage
It came in a simple box, nothing really special. It's easy to store in an underwear drawer, and you don't need to be too discreet, as it's not obvious how see-through it is when folded.

It's still great and it's definitely a hit when it comes out. It's held up amazingly to wear. I have no complaints whatsoever.