Have tried a couple more rounds of this OTTI--wasn't paying as close attention to water temp/ounces, but here are my thoughts:
Special Reserve Dong Ding--
I really wanted this to live up to its name--but sadly, was not impressed. I brewed this with water just off the boil to about 165 degrees, over several successive steeps, and it always remained fairly one-note and astringent. Not undrinkable, but definitely not to my taste, at least for Chinese-style brewing. I'd give it a 3.
At least I assume this is what it is, since the labels apparently fell off in transit!
But by process of elimination, I'm pretty sure that's what it was. I decided to put this one to the test with intense brewing--dumped 10 grams into a 300 ml pot, and brewed it with water just off the boil down to 165 degrees or so, over at least 5-6 brews. Unfortunately, my initial impression was that it tasted like a poor quality tie guan yin, and subsequent brews never really changed that. Very green, very harsh, not a whole lot of pleasant sweetness or interesting other notes to offset that flavor profile, at least to my palate. I ended up throwing out the leaves before they were completely exhausted (unusual for me!), just because I couldn't face drinking any more of it. I'd give this one a 2.5.
Overall, I'd have to agree with other reviewers that Imperial Pearl is a lovely tea, a definite keeper (and I've ordered some more, in fact), with the roasted Tie Guan Yin coming in second as a pleasant everyday tea. The Oriental Beauty cake I'm still reserving judgement on--I need to brew it a couple more times, I think, to solidify my opinion. And the Lishan, Jade Oolong, and Dong Ding were not teas I'd go out of my way to buy, sadly. Though I may try brewing my remaining samples Western-style--maybe that would improve my results.