We stayed at Mena's place when we first moved to London, and the experience was in fact better than I expected. The place was completely separated from the main house and has a separate entrance which made everything quite convenient. She's was very quick in responding if we have any concerns and frequently checked whether we are comfortable and enjoying the stay. The only concern we had was that we did not have any control over the heating since heating was controlled in the main house. So initially, we felt a bit cold when we were staying there during the day when heating was automatically disabled. But it was not much of a problem she was very open to enable heating any time we want. I really do recommend staying at Mena's place. Thanks Mena!