There are 4 pools and 5 bus stops spread throughout OKW, pretty convenient to all buildings.
If you want to be near the Hospitality area (main pool, check-in, restaurant) that is a separate booking category, and must be reserved at the time of booking.
Please note that only 3 buildings at OKW have elevators; 62, 63 and 64. All others have stairs only, though the stairs are nicely built and have a gentle rise. If this is of concern to you, be sure to request a ground floor unit, if available.