Glass is worth trying if you are interested in it. It has no drag so you don't need much lube, and it is very durable and easy to clean. It also retains temperature, which is nice.
I would say it is very different from softer materials like silicone because it allows for hard and direct pressure (like on the g-spot or p-spot). And the hardness of the material makes for different sensations.
But, as Gunsmoke said, no material is better. It is all a matter of preference.