They're quite good, especially if the item is from Nakano branch (since I presume that's the center of their online shop). One thing I like is they will under-declare your stuff, so almost 100% will escape our kastam, unless the item is too big. Take note that their shipment is branch-basis. For example, if you order an item from Nakano branch, and then another item from Umeda branch, they will be ship separately. And also take note that if total worth of item in a shipment (ofc minus the shipping cost) is less than  5000yen, they will charge you extra 500yen per shipment.