I love the concept & got it for my birthday. The press function works pretty well, but in the end I think it's better to make even a small amount of coffee in a bigger press. The bigger issue is that it leaks pretty badly. Don't know if it claims to be leakproof, but it's a farce if it does. Also, when mine arrived, it was partially broken. And though it claims to be dishwasher safe, condensation builds up inside of the insulation if you do go with the dishwasher. Overall, it's a product I can't recommend, as much as I wish I could.