Dennis and Pascal's place is well location near the center of the city - I could often walk to Potsdamer Platz, if not take a bus. The place was sparse but comfortable. Upon arrival Dennis helped me carry my luggage up to the apartment, checked me in and he thoroughly explained the facilities in the house. There was adequate bedding, though the duvet was slightly smaller than I liked. There was even Netflix available, though I didn't get a chance to enjoy it.
The place was relatively clean, though there were a couple of empty shampoo bottles lying around. The one thing I didn't like about the house was the shower - the curtain didn't wrap fully around, and that meant that water leaked out to the floor every time I showered. The cubicle was a bit small too.
Beyond that, it was a pleasant stay in the house. Dennis was also kind enough to allow me a late check out that day, so I didn't have to rush.