Exit at the The Polytechnichesky Museum or at Maroseyka street (ulitsa). Move to Lubyansky proezd and turn right at Luchnikov pereulok to the end and crossroad with Bolshoy Zlatoustiynsky lane (pereulok). Then keep going forward 50 m. You will see the arch with gates inside. go through the gates and keep going to the wooden door at the left side. Go into the building and just tell to security guard that you are going to Usethics. Then lift at 2nd floor.