Ani's apartment is a nice little studio in in the heart of Berlin's Mitte neighborhood - I could walk to all my meetings, which made it super convenient. It is what it shows in pictures - it's definitely enough space for one person. I was mostly worried about sleeping on a sofa-bed but it turned out to be ok. One thing I would say is that from pictures I expected a lot of daylight coming in but since the apartment is on the ground floor with windows facing the backyard, if you open the shades, everyone would see what's going on inside. So you will most likely end up with shades down all the time and light up inside - I think it's worth mentioning if that's something you care about.
There was also some last minute miscommunication about the check-in process, so I hope Anis will clarify it on her listing page and it will be avoided with future guests.