I would recommend this place.
First of all, Katka literally answers your questions within minutes. She is very welcoming and she was there for the check-in upon our arrival even though we were 30 mins late.
Secondly, the place is bright, clean and convenient. The room has 3 big doors/windows opens to a quiet backyard; a cute kitchen; glasses for everything.
Since this is more like a studio apartment, I think the place is best for solo or couple travelers.
A little tip, since there is no washing machine in the apartment, we brought the clothes downstair to a presser. I do not recommend to go there because the opening hour is 10am to 6pm, they fold everything including shirt. If you have to go, remember to ask for next day pick up or they will charge double automatically for same day pick up.