Dariusz is a wonderfully kind and accommodating host. His place was spotless and had everything needed to make the stay pleasant and comfortable.
The only drawback is the location. It is about a 10 minute walk to the Wembley Central underground station, and from there it is about 35-45 minutes to get to the heart of London, where the most famous attractions are. Adding the round trip cost of the underground to the cost of the room (plus the time spent traveling) reduces the benefit of the lower room price.