I can see how this tea could easily become too bitter and astringent as some others noted. I usually keep steep times for stronger black teas below 3 min and I am very careful not to use too much leaf. I’ve already experienced too many harsh cups of black tea going for 4min+ recommended times, so now Im afraid to ever steep that long :p
I used a 10oz mug and a rounded 1-cup teaspoon (the one from NM tea company that holds, I assume, about the same as Davids perfect tea spoon) and steeped for 2min45sec. The result is the “delicate” (for a breakfast tea) flavor that some others also noted in their log. I can detect hints of bitterness and astringency that could easily take over if I used different parameters.
Over all, its a fairly generic cup of black tea, but nothing unpleasant. I’d drink it again, but probably won’t buy again.