Pros:
Super marvelous city views from the terrace.
Top quite and chilly location above Pearl/Northwest with great jogging options.
May cool details inside the small trailer incl. rooftop garden.
Nice kitchen equipment for breakfast and salat.
Cons:
WLAN was shut down around 11pm.
Way too small for two people with two pieces of checkin luggage, if it's raining.
Don't use the electric kettle while showering, it will blow the fuse (but the superhelpful owner Scott instandly helped us out).