The advantages quickly summarized: 1. does not smell like plastic 2 is nice and light 3 is great and easy to clean 4. super recast by wide-mouth from my mixer, and the wide neck helps to facilitate cleaning at 5 with thicker fluids A - and pouring suitable. Had I only a 1 liter bottle with narrow neck concerned, which is more suitable for thinner liquids and for drinking straight from the bottle. In the 1.5-liter bottle of almost an entire filling my big blender container enters.