Unfortunately it is no longer there, but Asia Mekong has a few other locations and the one in…read morePrenzlauer Berg is nice as well.
Old (2018) Review
First thing is the loose/fresh tofu (the best in Berlin!) And I've tried them all as I cook a lot of Asian dishes and have shopped at every Asian store in Berlin since I've been here over the last 5 years or so. They also carry a very good selection of quality pre-packaged tofu. They manage to get in quite an international array of products in this shop - Thai, Korean, Indian, Chinese, Filipino, Japanese, Taiwanese, Nepalese, Malaysian, etc. They carry a good selection of Asian staples and some surprisingly reasonable speciality items, spices, spice mixes, sauces, noodles, teas, dried and canned goods, frozen and refrigerated products, etc. They have all the standard Asian fresh produce such as Daikon radish, Bok Choi, Napa cabbage, spring onions, bean sprouts, Achiote, plantains, fresh coconuts, etc. They even have yummy Asian snacks and drinks to grab and go. There is an extra room behind/past the register with more products (Ramen, large bags of rice, etc.). They also carry some Asian cookware, rice cookers and health/beauty/personal care. The store is clean, organised, average prices and decent enough service by Berlin standards. It's in a great location (very central, right next to Alexander Platz).