I have stayed at several JW's and I love this one in Polanco. I have been traveling to the DF for work for the last few weeks and we almost always stay here (sometimes we stay at the one in Santa Fe, or the Marriott downtown, depending on where our meetings are). I speak little Spanish but the staff at this JW is great with English, I always feel safe here, and I can get everything done from here including my business needs. The internet is fast and reliable. They even have a set of ports on the desk to plug in your HDMI cables so you can project your screen onto your TV (which I thought was great for watching movies or download shows on the road). The bar is nice, the Lipp restaurant inside is great, everything is good here. The only downside I can think of is that the entire hotel, including the pool deck, is non-smoking, so when I bought cigars at the gift shop I learned I couldn't smoke them anywhere! Otherwise I happily recommend this JW to you if you are a gringo and need a safe place. There are always plenty of Ubers hovering nearby, or you can get a driver via the hotel (and billed to your room), and Polanco has some great restaurants.