I have been in three times. The service has always been excellent. The people serving the donuts have always been friendly and on my most recent visit the server was happy to answer all of my questions about their products.
The first time I tried the cookie monster, some sort of chocolate donut with cookies on it, and a sausage roll. The only one I really liked was the sausage roll. A coworker brought in a couple dozen and I tried the streusel - which I loved! So, on my second visit I got a bunch of the streusel and a lemon donut - which was okay.
I went back this weekend and got a cotton candy, an Oreo cheesecake, a streusel, and my boyfriend got a cake donut with nuts on it. He was only able to eat about 1/3 of it because he said it was way too sweet. I didn't notice anything resembling cheesecake on the Oreo cheesecake donut.
Overall opinion based on all of my visits:
All of the glazed/frosted donuts I tried were *way* too sweet. They all looked pretty but the sweetness was overpowering and ruined the experience of the fun donuts. Unless I must have the streusel donut or they start stocking the sausage roll regularly, I don't think I'll return.