My first Persian café experience was a good one.
We arrived at BB café around 7:00pm on Sunday and it was packed. Luckily, we got the last seat. Pretty busy with limited seating. You go up and order your food and the server brings you the food/drinks. You pay at the cashier after you eat.
We ordered cardamom Persian black tea, a cake roll, and a zoolbia. The tea comes in a cute teapot with a tea light on a stand to keep the tea warm. I absolutely love cardamom Persian black tea. I believe you have to ask for this as the standard is a earl grey Persian black tea. The dessert were plated nicely with designs. I enjoyed the tea and cake roll. I found the Zoolbia to be too sweet, but we shared both desserts so the sweetness was manageable.
Just a tip: The seating is limited and lots of people come in wanting a seat so this isn't a place where you can really lounge around, study at, or have long convos with friends as it gets pretty crowded (at least, on a weekend). I think most people get take out.