Not really… the website is well made but the tea could all be crap for all we know
Jing Jia Tang's tea ranges from "really good for the price" to outstanding (the single tree xiaobings and other premium stuff he sells on pre-order.) It's also one of the most reliable sellers you'll ever meet. Laoban is genuinely passionate about puer, and a crazy workaholic who oversees every step of the production, including most of the picking, if not all. He's always sampling maocha and trying to perfect the price-to-quality ratio of his standard yearly gushu cakes, like the Hekai one, which are all blends of selected small gardens. If Liu Yang says the tea is plantation, fully gushu or fully qiaomu, you can trust his word. There are few people in this business that I would be as comfortable about putting a good word for.
The Grinch in me is actually a little sad to see the link publicized. His better stuff already sells too fast for my pockets.
I found his tea last year and, incidentally, it led me to Mark's (from Zhizheng) Cream of Banna project, which in turn led to me some nice, and one superb, samples. He has teas there that are inbetween that price range; I'd recommend contacting him too, AllanK. I can send you a couple of recommendations from taobao privately but, to be honest, taobao-wise JJT is a very nice start.