I bought this to replace the Grav Showerhead which cracked in no time. This piece is great, you can interchange pieces and it protects you from replacing the whole piece.
fairly nice, fairly pricey for what it is
The Turbine lower section is satisfactory. The Helix air-injection sections turn out to be, in my opinion, a gimmick. Concept sounds cool, and the whirling smoke is aesthetically pleasing when the piece is completely clean..... but insofar as the quality of the actual hit, I deem it inferior to filling a chamber (sans air-injection) then clearing it all at once.
Stax is the best!!!!
Great piece. I’ve been using just Stax for 3 years. The Turbine Base is by far my favorite base. And I love the Helix mouthpiece. I recommend to anyone that appreciates a good smooth hit.