I was due to stay at Bettina's place for two nights but ended up staying an extra night in Oaxaca so just had one night here. I was gutted when I arrived that I would only spend a night there as it's such a nice place and I wouldn't have enough time to enjoy it.
It has a lot of space and huge windows so it's very light. The bathroom has a dual shower (rainforest and the other type that you can adjust/hold in your hand) and a few toilettries. The bedroom area is large and has a nice, comfortable bed - I slept very well. There is a small dining table and a kitchenette with a fridge so you can make food and have somewhere to sit and eat it. Or... you could sit on the roof terrace, which is all yours!
The apartment is situated at the back of Bettina and Hubert's garden and is in a very safe, secure and quiet location - there is a separate entrance for guest use. I was invited down to theirs for coffee, freshly made juice and a chat in the morning and I was able to leave my bags until I was ready to fly out. Bettina was really helpful and replied to all of my messages really quickly and was very welcoming on arrival.
Location-wise, it's just outside of la Condesa, but actually only a short walk to get back there and to lots of restaurants and bars and it's less than 30 minutes walk to some of the green spaces and museums in Chapultepec.
All in all, a great place with great hosts and I would highly recommend.