I've been to a a couple dozen or more vegan or vegetarian Thai joints around the world, including in Thailand itself. As such, I had high expectations for Urban Vegan, and the restaurant mostly met those expectations.
My two non-vegetarian friends went straight for main courses, getting a red curry with mock chicken, a spicy basil leaves with mock chicken and a spicy noodles dish. All of the dishes cost around $10.
The red curry and the basil leaves were both excellent: spicy, savory and hearty. I am almost always unimpressed with curries and stir-frys I find in average Thai restaurants, but Urban Vegan manages to produce the robust flavors one hopes to encounter in Thai food.
It should be noted that my non-vegetarian friends loved the food as well and, like me, would call it the best Thai food they'd had in Chicago.
The spicy noodles was the only dish that didn't get a passing grade. This one was spicy, but not particularly flavorful otherwise and just fell flat.
For dessert we got the coconut ice cream, which is a wonderful dish to share. It's coconut ice cream packed into an actual coconut, complete with coconut flesh still sticking to the sides of the shell. This dessert was so tasty, in fact, that we ordered an extra one.
Urban Vegan is easily the best Thai food in Chicago, in my opinion, and a fine place in general. Keep in mind that it's a small cafe with only a few tables capable of seating four people; don't come with a large group. The service is friendly and prompt, and the restaurant also has reasonable prices and good portion sizes.
I will be returning to Urban Vegan whenever I'm in Chicago.