Villa Condesa is a great place to stay in noisy Mexico City, I really enjoyed my stay there.
Villa Condesa is in a very quiet neighborhood where it was safe to walk at night for the group I was with. I stayed in the cozy room which is very good: clean, tastefully designed. I stayed there alone, with two people it would be VERY cozy, especially in the bed. The bed might also be a bit short for tall (>1,85m) people.
The staff was always very friendly, courteous and helpful. For the reservations, just remember that calling is more effective than mailing... :-)
Only thing that surprised me was that breakfast does not mean an European buffet style breakfast. Instead, fruit is served, one baguette and something like scrambled egg or tomato/spinach mix (changes every day). In first instance, what was served is not that much, but they were more than happy to prepare more for you.
Very good place to stay, I would for sure go there again.