The restaurant isn't close to the Beida (Beijing University) east gate, it's in fact close to the Tsinghua University east gate. Closest subway is Wudaokou.
I went to this restaurant with my family and found that it was nice, clean, and the atmosphere was bustling at lunch time. The best thing about it is, on top of being vegan, that it's very affordable. Our 5-course meal with desserts for all and a slightly strange blueberry smoothie for me, was less than 300 RMB. Good value for money! The dessert vegan tiramisu people keep raving about is good, but it's not really tiramisu. ;) A nice dessert anyway! I was looking forward to trying the "egg" tarts but they didn't have them at the time. I have to return to try them and other dishes!
UPDATE: I went here a couple of weeks ago and noted that they have added some cheese dishes to their menu. They make their own mock-cheese. And those dishes are amazing!! Do try them! And don't worry, it's all vegan :) Love this place more and more each time.
Updated from previous review on Saturday June 08, 2013Pros: vegan, very affordable, clean environment