We were very inspired by these photos and the overall look of the apart. It looks great on these shots what to say. In real life it's also great: it has this loft like contemporary look. But there are some negative things:
1) it's pretty dark there. Windows are small. It's really hard to stay there without turned on light. The apart has good electric lightning and for few days it would be okay, but we spend 7 days there and we hated it in the end of our staying.
2) the whole apart is pretty dangerous: as it mentioned bathroom has low clearance... But the main room has a lot of low constructional elements which are extremely close to your head every time. For first two days it was like 'Oh, it's interesting...' but for the last it was a nightmare. We had a lot of jokes as if you would live for a long time in such apart you would become a real hunchback like in tales. My wife had an issue when he hit her head in the morning in the bath. Now when we're home I see that I'm getting up very carefully cause I'm afraid to hit my head. So this place isn't recommended for tall people for sure.
But the main problem for us was a parking situation. So we were traveling by car with 4-month baby. It's our second car travel. We asked Sarah about parking situation before arrival as we know it could be hard in center of such popular city as Prague. She said that there is a paid parking not far away, and we can handle it when we come, so... no worries. When we were coming we send an SMS with a question if it's okay if we come right to their place by car. Sara said it would probably be okay, as she thinks. I remind you that we were in 5-6 hour travel by car with 4-month baby, with extremely big amount of things with us. We arrived and had a horrible check-in experience because you can't park (or even drive there) if you're not a resident. Step-by-step experience:
1) We tried to park. Police officer said we can't park here. We asked where we can, and he said: nowhere here. It's everything for residents. I asked can we find there? And he said: try!
2) we tried to find 'there' (on the street where the apart is located) and police car arrived right behind us (maybe in 30 seconds): they didn't speak English well and just said smth like 'GO AWAY. YOU CAN't DRIVE IN THIS AREA.' Do I need to add that our baby was crying after 5-6 hour road trip? And we were tired... And of course they didn't care as they are good officers doing their job.

3) we went to the first place we tried to park. Sarah saw us and said to park there. The same police officer came again. Sarah spoke with him in Czech and asked for 10-minutes as we have a little baby. Baby was crying right in front of him. He said: OK, 10 minutes.
4) apart is on the last floor of the old building. It's hard to get there even without any luggage. I mentioned that we had a lot of things with us. So I was running 4 times for our bags up and down. When my wife wanted to help her with our tired and crying baby. It was awful. I was wet. But okay, I carried everything to our apart. Sarah has already left us at this moment, as our baby was crying probably it wasn't great check-in experience for here too. But okay, we can't park here and...
5) I need to re park the car. I said it to my almost crying wife and went away. Before that Sarah called Matthew and asked him where can we park, he said there is a parking lot Rudolfium. It's about 850-900 m by foot from their place. About 15 minutes walk. I drove there. After everything, I described it was absolutely terrible journey: I was wet, tired, worried about my wife and baby. But I found the parking and left the car there. Probably I don't need to say it's not a cheap parking lot because is the most centered one.
6) In 15 minutes I came to the apart. My wife was okay, baby was okay, but we all were tired.
Okay, If we were without a 4-m baby we can leave a car somewhere and walk by foot... We can take few cabin bags with us. But in our case it was probably the most uncomfortable experience we had on airbnb over the years. If I would know the whole situation with parking I would never book this property.
Probably it's the first feeling 'bad' review we're writing here. The apart is well-equipped, it had a great design and overall look. There are everything you need there (even dryer, which was very important for us). Hosts are friendly and helpful, but we can't say that this place is infant-friendly. We can say for sure: it's not okay for traveling with small babies by car. So it wasn't okay for us.
We can recommend this place to young couples, to friends who want to spend some days in the heart of Prague. It's a wonderful location, it's really hipster overall look. Wonderfully equipped with all amenities you can imagine. Modern and cool apart. Hosts are great. Also it could be freely recommended for everyone traveling not by car :). It's a 5-star property without any doubts, but only the parking situation was a 1-star in our experience.