We took two rooms for a family of four (children 9 and 12).
The location is great, with three tube stations (Euston Sq, Euston and Warren St.), within 3 minutes, and good shops for groceries, restaurants and pubs within 5 minutes. A short walk from Regents Park, 5 minutes and 15 minutes from the Zoo entrance.
The rooms were nice, and for London big enough. The shower great. Our only complaint was the toilet, in the same enclosure as the shower. The space allocated to the toilet is so small that an adult really struggles to use it. The glass surround to the Toilet shower enclosure whilst opaque from 300mm, (12 inches), from the ground, leaves little to the imagination whilst you are showering or using the toilet. A typical poor quality architect.