Overall, a good accommodation in a relatively nice location (good proximity to shops, public transport and the Danube river!). The room is fairly specious and feels relatively fresh. Check in relatively straightforward.
What was not as expected. The description - specifically the pictures - was not very accurate in portraying the room. It looked different, but probably because they placed me in a different room. This was not a deal breaker though. What was not obvious is that you have to pay EUR 15 for aircon a day - on some hot days in Vienna aircon is a must.
Where the owner could pay attention to. The accommodation is relatively clean, but some of the tableware in the kitchen were not very clean and the floor did not feel very clean either (but not excessively). The bed was squicky - worth replacing or fixing. The dishwasher did not work, not sure why.