Apartment 3 & 4: Flexi Combo Compact Combining apartments may be the easiest way to offer our guests even more space, privacy, and flexibility. FLEXI Combo Compact is suitable for large families or groups of friends (up to 4 guests), offering extra space to easily move in and continue the daily routines. Choose FLEXI Combo Compact when extra space for socializing and coziness is needed. This apartment is combination between Flexi Compact and Flexi Classic.