The Portland Phoenix has published a review of The Holy Donut.
The whole experience sort of pulls you one step out of the traditional simple experience of eating doughnuts, and it’s pretty pleasant out there. They manage to make their unusual flavors distinct, but subtle enough that the doughnut never turns into a sugary cartoon of the flavor it is supposed to represent. A sweet potato ginger had a sort of ambiguous spiciness, and the pomegranate a pleasant tang of fruit. The pistachio has plenty of nuts (allergic types, you’ve been warned). Only the lemon disappointed a bit — seeming a bit candied rather than genuinely sour.