We spent a month staying at the flat as a family with two children. The rooms were spacious and we had an enjoyable stay. The underground parking was very convenient. The hosts were quick to respond to questions and address any concerns. There was a good supply of new linen and plenty of fresh towels.
I think that the flat would benefit from a professional clean before the start of new occupancy. While the basic cleaning was done, there are some areas such as walls / doors which can be cleaned better.
As other guests noted the flat is located at a noisy intersection. I sleep with earplugs so not a big concern for me but something to be aware of for those who prefer a quieter location.