I am a lover of all things dough, but you have to think carefully about the doughnut choices you make at Greenbush. Case in point: my husband ordered a doughnut covered in fruity pebbles to fulfill some sort of childhood fantasy (I'm guessing...fruity pebbles were never my cereal of choice growing up :) The cereal covering the actual doughnut was stale, so you could tell that doughnut had been sitting in the display case for a couple of days. And that makes sense since most people probably wouldn't order this doughnut...maybe just on a whim as was the case with my (hungry) husband)! If you stick with classic selections that get baked on a daily basis due to demand (like the glazed, chocolate covered, or apple fritter) your sweet tooth will be satisfied.
Also, I took someone's Yelp advice to ask the staff for recommendations and I was met with a little hostility from the guy working the counter at the time. Maybe he wasn't too keen on having to close the store at 2am (I went in around 7p on a Sunday), but just beware they may become unfriendly when you start asking questions.