My place is just between the Airport and the City center. It is close to two Metro stations, The Boris Garden, Sopharma and Litex Business Towers, The Museum of Socialist Art, shopping malls.
For you planning a longer stay, you may be interested in its proximity to 17 Embassies, kinder gardens, Students town and more.
You will definitely love it because of its light and comfort.
And because of the extremely caring host ;)