I ordered a handmade Japanese Kyusu from Umi Tea Sets a few months ago as a present for my girlfriend (she's absolutely obsessed with tea and Japan!). If I remember correctly, it shipped from London to the USA and took over two weeks to ship. Overall, the quality of the product was incredibly beautiful, but it was smaller than I had expected. The kyusu makes about 1-1.5 cups of tea per steep, or 2 small cups at a time. The flavor we got after the first steep was very clean, pure, but missing a little something. The more we used the kyusu, the better the flavor became, which ultimately left us satisfied and ultra zen-ed out. We get a lot of tea directly from Japan and it tasted better coming out of this kyusu than any other western-style teapot we've used before. If I could make one critique, I would say that I wish the shipping didn't take as long as it did. At the time, I was hoping to receive the kyusu in time for her birthday, but it ended up taking a bit longer than expected. She was traveling at the time and wasn't able to taste the tea until about a month after we had finally received it. That's okay though -- it gave me plenty of time to develop the flavors in the kyusu!
TL;DR: Umi Tea Sets goes above and beyond on quality. The products certainly are pricey, but well worth it for any tea fanatic! Shipping took a bit longer than we had hoped, but it took about 2.5 weeks in total -- worth waiting for!