I got the tea yesterday, but sadly had to leave shortly afterward for the rest of the afternoon and evening!
So I dove right into brewing after church today, and I went straight for the micro-fermented, mostly because it was "the new thing."
WOW!! This tea has a lot of ZING! I just finished my 6th steep and it was still quite a nice cup of tea. The aroma and taste is reminiscent of the usual vegetal profile, but much deeper. I wish I had the vocabulary to describe it. It reminds me of something, but I can't quite put my finger on it (whether it's a particular Chinese green or oolong... maybe that's what my brain is gravitating toward).
I realize that this type of sencha may not appeal to some folks, but I really, really enjoyed this one.
For reference, brewed 3.5g in 100mL Petr Novak shiboridashi; no preheat. Water at 165F, steeps at 40s, 20s, 20s, 20s, 20s, 60s. The second steep could have been 10s, as it was damned strong. And I just did a 180F 60s brew, I think it's near the end, but no untoward flavors.