The Amethyst is a great beginner glass dildo due to you being able to use both ends. The smooth end has a curve to it that is designed to hit the g-spot and it does just that. You can also use this toy for anal play just taking care when inserting it because though it does have a curve, you can never be too safe and since we don't use this toy for that purpose, I can't accurately comment on that other than to advise you keep a hold of it.
This toy is good to use alone or with a partner. Guys (or girls) should be careful when using this on their woman partner because it is a firm, hard, solid glass toy and being too rough with it could cause pain and bruising.

The Amethyst is made of 100% body safe glass that rates a 10 on the safety scale. This is firm, sold, hard glass. There is no give to this toy whatsoever. The glass is sleek and smooth. One end of the toy curves down into a rounded tip that is designed to stimulate and massage the g-spot. The other end of the toy makes a great handle due to the 3 bulbs that your fingers can rest between, you can also use this end for penetration if you wish. The texture wasn't unpleasant for my partner on either end. There was no smell to the toy at all.

Glass is good for temperature play. My fiance enjoys them cooled by either leaving them near the air-conditioning vent or putting it in a sink of cold water. You can also do this to heat it up. The glass will eventually come to the temperature of her body.

The size and shape of this dildo is perfect for beginners whether using it vaginally or anally. The measurements are:
Length: 7 1/4"
Insertable length: 3" / 4"
Circumference: 4"
Diameter: 1 1/4"

The Amethyst was nice to use on my partner. Due to the smaller size and less texture than some of her glass toys, she allowed me to take charge without worrying. She isn't much for g-spot stimulation because sometimes it causes cramps for her but I was able to locate it and massage it lightly with the curved tip and it didn't cause discomfort to her at all. The bulbous end was pleasing to her as well, she said she enjoyed the short sort of "popping" sensation created when slowly thrusting with it. The shape of the toy made it great and easy to handle.

You can use any type of lubricant with glass toys. Cleaning is easy, simply antibacterial soap and water will do but you can also use wipes, toy cleaner or a 10% bleach/90% water solution. Take care when storing glass making sure that it won't be hitting up against other glass toys or solid hard objects that could chip it. While it is very durable, you should still treat it with care. It it should fall and break, it will break off in large chunks as opposed to shattering into tiny pieces like glass kitchenware. The Amethyst comes with a velvety drawstring bag for storage. It isn't padded but is still a decent bag to keep it in. You may want to save the bubble wrap that the toy is wrapped in to wrap it back up in and then store it in the bag.

She still likes this glass toy. It doesn't get used often but every now and then. It's a great quality. Either end can be used which is a plus.