The best points of the unit:
1) Spacious
2) Well equipped
3) Secure
Shortcomings
1) Insufficient lighting in the unit.. need lamps (there are none) and stronger lighting in Lounge, Kitchen, Bathroom
2) Some household appliances did not work
3) Need a shower screen to prevent flooding of bathroom
4) Need a dining room table & chairs

All the avobe is easily fixed and it is then an excellent unit from which to explore Berlin