We didn't meet Lana, but she took care of everything we needed. The apartment is very nice, we were a group of 8 adults, the apartment is not huge, but was OK. The kitchen has everything you need, big bathroom. There are 2 regular bedrooms and one big bedroom with a big sofa and an extra bed that can be used. The location is very good, 7 minutes walk from alexanderplatz, 1 minute from a central subway station.