I've never tried an unhopped beer, so will be interesting to hear how this comes out (I think you'd get even more malt sweetness if you replaced the sugar with more malt). Did you use lemon in the brew? I think that may be supplying some of the bittering for this beer as well. Regardless, let us know how it comes out!
I racked it to a secondary today so I can clarify it with some gelatin or something. It's been a month, and it's still pretty cloudy and the sediment was fluffy. I pulled a sample to taste, and I bottled one 750 ml bottle.
It's not very good but I think it will be drinkable. Still tastes kinda yeasty, and the tangerine peel is more assertive than the ginger but neither of them are very pronounced. And it's not hot at all and there's no bitterness. I'm not going to pass judgement until it's clear and carbed, but I think I will make it again and use a full pound of ginger instead of just 6 ounces.
It's definitely alcoholic; I couldn't taste the alcohol but I could feel it a little from drinking about 8 ounces. Maybe I should just call this one a gruit.