Description understates how good a place this is. Six of us -- two each of grandparents, parents, and children (13 and 10) spent a very comfortable week together. Location is excellent -- easy walk from St. Pancreas with luggage, not only is the tube at Russell Square but so are buses, with another set of buses on Gower Street/Tottenham Court Road, and the British Museum, Covent Garden, and the restaurants on Charlotte Street are all within reasonable walking distance. Two hundred yards away is the Brunswick Centre, with a big Waitrose, small Sainsbury, and restaurants -- we liked sushi and curry from Hare and Tortoise, pizza from La Scala, and pastries from Patisserie Valerie.
The house is quite spacious -- bedrooms are big enough to retreat to, living/dining area commodious (we even added a daughter and husband to make eight around the dining table), and the kitchen big enough for two cooks.
The street is quiet and safe -- because it's one-at-a-time at the east end, very few cars use it.
The owner is personable, helpful with advice, and easy to work with.
All in all be prepared for more than the written description says!