+ The size is small enough that you can store it almost anywhere, but big enough to cool the smoke and provide decent sized hits.
+ The hits are very smooth, the honeycomb disc filters the smoke well
+ The big pinch in the neck is excellent for holding ice and reducing splash back. It also gives you something to grip onto when you're holding it.
+ Its light weight and shape make it easy to handle
- The bowl is pretty close to the mouthpiece, so you need to hold the pipe and tilt it toward you when you light the bowl, and then angle it so that it's perpendicular to the floor and finish your inhale in order to get the best filtration through the disc. This is really easy to do once you know how though. And the piece is really lightweight and easy to handle, so it's trivial.
NOTE: The description says to add 1.5" of water, however that is not enough. I find that filling it about 1/2" above the honeycomb disc allows you to get good filtration while minimizing splash back.