We enjoyed our stay on Urbanstraße, which was very convenient for public transport all over the city. The flat is well equipped and everything (beds, sofas etc) was comfortable, if compact. We appreciated the extra touches like sweets on the bed, wine and a helpful guide book to Berlin. The kitchen and bathroom both have everything you would need.
We knew the layout was unusual, and it is very cleverly done, however a couple of things made our stay less than perfect. Having the bathroom (which doesn’t have a fan) directly off the kitchen and below one of the sleeping areas felt a bit odd. I think this would make some guests (eg friends travelling together) uncomfortable. The ‘steps’ to the beds are also steep and narrow which made it difficult to navigate at night.
The bigger issue was the noise from the street and front door which disturbed my sleep both at night and in the morning. I saw this mentioned on previous reviews but having lived in city centres before thought I knew what to expect...it was much worse than I expected! Having said that the beds were comfortable so I did drift in and out of sleep, and if I had been able to wear earplugs it might have been fine, but I wanted to be able to hear my son (asleep in the other, quieter, room!) if he needed me.
Overall, we felt the flat offered good value for money in a handy location and is well equipped, but the downsides of layout and noise slightly marred our stay so we can’t give it 5 stars.