Eight days have passed since I last called, discovered that nothing had done about my order placed and paid for on Sept 8th. Owner promised the package would go out last Monday. No show this week. I live just 5 hours drive from Portland.
At this point, I cannot recommend doing business with Serenity Arts. I have had overseas orders filled faster.
Edit: I received my package today from SA. It was indeed posted from Portland one week ago - sent by USPS by mule, apparently. The shipping estimate was accurate and the items well packed, with exception of the tea*. The small blue gaiwan ordered is lovely - far higher quality than I would have expected for the price. The blue and gold porcelain teapot is not 8 oz as listed, it's 6oz. It's got a nice thin wall. The order page incorrectly attached an order code for a different size and pattern for another pot. I can live with it, and will probably order the one I want by phone next time. I also ordered a glass gaiwan; it's hand made and surprisingly thin walled, so it should be perfect for my lighter oolongs and it may well see service for DCs, too.
*The tea came in thin zip lock baggies. A week in shipping didn't help freshness. Good thing its dry season, they're rolled teas, and I have spare tins and vacuum packs. Not sure how he is shipping his greens, but it won't be pretty if they're casually thrown into the thinnest of plastic bags (oversized ones at that), sans protective wrap in priority mail boxes.
I'll have a chat with the owner about hair curling tongs and cheap heat sealing bags.

He will also be introduced to USPS one-price packaging, which would have sufficed and is one third less expensive.
Edit 2 (Sept 29): High Mt Wuyi, grade B: not bad at all on brewing. Flavorful, aromatic, reasonably well-crafted for a less-expensive tea ($32/lb). A good choice for an every day oolong, much better quality than typical 'medium fired' oolongs. Much more impressed with the 3 good infusions than with the appearance in the baggie. Two thumbs up.
Feeling relieved that it finally showed up, since I had no idea how it would be sent or if I would receive it, given that it's full 20 days since ordering.