This is my favorite go-to piece. I like it because it is spill resistant and drop friendly (to a degree, of course). There are other who make the same piece but the design behind is brilliant. The silicone ends have edges so that if you drop it, the glass is protected and never hits the ground. Then the mouth piece has a straw on the inside so even if you flip the entire pipe upside down (and you have your water at a reasonable level) it will not spill out of the mouth piece. Sometimes if you keep flipping it, it will eventually works its way through the bottom half and out the nail tip... but that's rare.
Personally, I dislike metal nail tips, I wish it came with a ceramic tip instead. But I have a bunch of those handy and replace it