We are excited by the bottle! I had for my son already the gorgeous bottle with the fish and have now my daughter bought these. Previously, my son had a normal thermos for its forest days in kindergarten. But that is for a 4-year unwieldy, so that is less drunk, it is easy to spill something and the temperature is difficult to determine. All these problems are now past. The bottle lasts for hours just the filling temperature (ie by no means too hot fill!), It is very easy to open and re-spill to close the drinking opening is large enough so that children really can quench their thirst and it is nothing spilled. It also is easy to clean because it can take well apart. I need then only the drinking spout Pre-rinse, the sealing ring to take out, and give everything in the dishwasher. Only during the assembly, I would be happy about a marker as it fits best, because sometimes you have to try around a bit. Since the bottle and walking is unfortunately often unceremoniously dropped on the tile, is at the bottom very easily from the paint. But that is otherwise comparable bottles from other manufacturers. It is certainly not designed so that young children nibbling at her, as complained in another review. I can only recommend this bottle for all who are outside a lot.