Positives - the lid can be easily cleaned in the dishwasher with no parts requiring dismantling. Negatives - the mouthpiece you drink from is very small resulting in your mouth predominantly touching the plastic lid. It taints the flavour of the coffee. The bottle was also too large to fit in my car’s cup holder. I also bought a Zoshirushi and find that a superior product overall even though you can’t use the dishwasher to clean the lid. It has a much larger and more pleasant mouthpiece to drink from, easily fits in cup holder and it’s insulation technology is better keeping drinks hotter for longer.