My apartment is located at Grindelhof - a popular little street in direct vincinity to the city center, university, and in walking distance to Hamburgs convention center. Also you reach U1 Hallerstraße and Dammtor station in no time. Therefore it's perfectly located for business travelers and couples that want to explore Hamburg. Grindelhof is also known for its cafes and restaurants (during the day and at night).
I've been living here for 6 years and am loving it! You will too.