This soup is superb. Not enough lemon so I added lime juice also. Didn't have mint but can imagine that it would be a great addition. Will add the mint in future makings. This will be in my rotation since it's simple yet tastes like you put in lots more effort. If you like foods with an "ethnic" flavor, I think you'll also enjoy this soup.
Haven't tried this yet, but comments on Epicurious indicate that the turmeric and cumin seed proportions probably should be switched. Looking forward to trying this!