I'll admit, I'm biased. Having lived in Central Asia for over a decade, eating at the Dushanbe Teahouse is a bit like visiting home. Where else in the area can you have a plate of plov (traditional rice dish) amidst Central Asian (Tajik, in this case) architecture?
While my wife and I adore the Teahouse, everyone we've brought there to eat has also loved their experience. While there are scores and scores of tea options, some quite impressive like the Blooming Tea, I always enjoy their house chai - more Indian than Central Asian, but phenomenal. You're allowed one free refill, but often a third cup is given if asked. Do note, the house chai is LOADED with caffeine; with my sensitivity, I need to stop at two cups by 1:00pm or else I'll be up until 2:00am.
There are several staples on the menu which never change (plov & shashlik, for example), but new items are constantly introduced, and I've never had a bad meal. The servers are knowledgeable and cheery.
Boulder, a sister city to Dushanbe, Tajikistan, sent Dushanbe an internet cafe. Dushanbe sent a hand-made traditional teahouse. Though Boulder had no idea what to do with it for several years and it sat in shipping containers awaiting a decision for its use... Boulder got the much better end of the deal. Highly, highly recommended.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.