Good delivery and fast. The design is amazing. I got the one biberon and one with straw for my 13 months old baby to transition from her avent milk bottles. But I am not sure why, the moment milk stays in tehte for more than 5 minutes, the bottle stinks..does it suppose to have only water? I am not sure. But the smell is really really bad in both bottles. Which makes me believe it is not a faulty item but rather the standard one.. but they really stink. With cartoon milk not that much, but with the formul-poweder milk it is awful.