Our family had a lovely time staying at Ale's flat. We had a bit of difficulty checking in due to a new system for building entry, but Ale was very communicative and responsive as we got that sorted out.
The flat itself is lovely with a great lay-out for families or combined households. Each bedroom has an en suite bathroom; the kitchen is well-stocked; and there were even some toys for the kids to use in the bunk bed room. (Note: There's no real formal dining table, but we made good use fo the coffee table and otherwise "ate around.") Like the rest of London, there's no AC--so it was decently hot during our stay, but not unlivable, especially with the provided fans for each room.
The neighborhood is great--within easy walking distance of several tube stations, as well as Hyde Park. The immediate area has a large Arabic-speaking population and lots of shops and restaurants.
We enjoyed our stay very much--this is definitely a family-friendly place in a good location if you're planning to visit London with little ones in tow! Thanks, Ale.