Heiko's apartment was absolutely wonderful - everything we wanted and more! The apartment is huge and so, so good for a group. Its really well located with the S and U Bahns just outside the apartment complex. The apartment is beautiful and so clean and well stocked. Lots of towels available and plenty of hangers which often gets overlooked - not the case at all at Heiko's place. His communication before our stay was also wonderful. 100% recommend for anyone visiting Berlin in a group. Thank you.