Let me preface this by saying I LOVE GRAV lab products!
This piece is beautiful and I get what they were aiming for but it falls flat. The idea is that the helix design cools the smoke for a nice, pleasant draw. When pulling, the helix action never started and it felt like using any other glass piece...nothing special. I feel like there’s a design flaw here but nothing that would stop me from ordering something else I’d be more pleased with. GRAV makes good ****. However, if I were you I’d consider another one of their pieces over this one.