Great place to stay! Location is great for doing the touristy things around Mitte, while still being in a side street, so things are quiet and quite pleasant. Lots of restaurants just around the corner, and a supermarket and pharmacy within ~2 minutes walking; super practical.
Kitchen chairs were decent enough for working, and the wifi worked well. Everything's super clean, and the apartment overall is very cozy, as it also gets a good amount of sunshine in the morning.
Overall, super great!