I own just about every high-end vape there is because I have been chasing the perfect combination of convection on-demand efficiency and performance. The chase stops here. All the Splinters are great. I do like the US made Z the best. You can't compare the ease of maintenance and performance with anything else. This thing wins by miles. I have never been as impressed. I also recommend the XL cooling mouthpieces and a good DNA based mod to power it.