I was so impressed with how beautifully equipped the kitchen was, complete with dishwasher, refrigerator, stovetop, microwave, electric kettle and every kind of dish, pot and pan, or utensil one could want. The bathroom was extremely large and modern, and the rest of the room was nicely furnished and comfortable for sleeping, dining, or sitting around. A safe is provided and there's plenty of storage, hangers, etc. Free tea and coffee and always available in the lobby.
The location is also great. There's the Charlottenhof train station just steps away, it's an easy walk to Sansoucci and the other palaces, and shopping is also close by. Even the main train station is a walkable distance away.
In the 3 days we were there, no one came to clean the room, but I prefer it that way. I assume if we had needed fresh towels or sheets for a longer stay that we could have asked for them. It's almost like living in an apartment, though, and I liked that!
I'd definitely stay there again and would highly recommend it.