On the topic of Borogu it's pretty good, but as vekta pointed out it lacks the slight punch that boroguru has. I've never directly ordered borogu, but it's been mistakenly added to my order as boroguru.
And akava, I believe the mixtures are blended at the growers location, so matching the taste probably wont happen, and that's definitely one of the major contributing factors to why I like nambawan so much.