I'm back again! :) I extended my stay with them for another 2 nights cause all the flights on my departure date was very full. Alex was very quick in replying my message. The room I got this time is 2 single beds with ensuite bathroom (Alex's husband gave me the option to choose either this room or the double bed with private bathroom. So kind of him!). And this room is equally super clean, comfy and cosy! I really love it there. I will definitely book my stay with them again if I'm coming back to London. :)