I love slides, not too much to say on this one. No cons honestly, it's just one in a multiple kinds of slides.
This one thou, is particularly comfortable. I have got TINY HANDS, and it fits my middle finger and pinky without being too loose, which is very important for me.
On the middle finger i still have the control of bending my finger while playing, so it's not too long as a slide.
Tonewise, is very metallic, a bit harsh, surely more cutting than a ceramic one!
So if you want a good bluesy slide, comfortable, not too big and not too long, this is perfect for you!