I would like to recommend you to change plunger to Kenya's Full metal one. And make sure to use with precision cooking scale. Very good product.
Positive Product Points
Never crash like Chambord. Insulation is good enough.
Negative Product Points
Plastic and silicone made, cheap plunger. I changed Full metal plunger for Kenya 1L.
Very good usability. Pouring feeling is good. Nice design. I would like to recommend you to change plunger to Kenya's Full metal one. And make sure to use with precision cooking scale. Because This product is made with all-stainless steal, you cannot recognize how much hot water is poured. For that, Pouring on the precision cooking scale is recommended. And, I recommend to pour fresh, hot boiled water(Just 100degrees C). I think it's very good product. I thunk this product endures lomg-life use (only if you changed plunger to full-Metal one.)
It was very smooth process. Amazon did perfect delivery.
Three Month Followup
Nothing is changed. Very reliable, good working for specialty coffees. Durability is very good.