Allan's place is great - I stayed for a month so I got a very in depth look. The location really stands out, it's extremely well connected via Ubahn and tram, and it's only minutes walking to both Warschauer Str nightlife and the amazing restaurants near Boxhagener Platz. The room is large and well lit, both by natural light and lights provided. the kitchen has lots of useful utensils that you'll wish you had elsewhere. on the other hand, I had to buy basics like salt and pepper myself. The tub in the bathroom is also very nice to use, though it is just a normal tub, even though is called a jacuzzi in the description (maybe that's an Airbnb thing)
Allan is very kind and helpful, moreso than any other Airbnb host I've had so far!