This apartment is great, beautiful and convenient, in an amazing location steps to DuPont Circle. I visited with my husband and my kids (8 and 10) and we were very comfortable. We even ate in one night -the kitchen is tiny but functional. If you plan to cook beware that there are no basics like salt or oil in the kitchen at all. Or kitchen rags. But there was dish soap and a dishwasher.
The heating (individual wall units for each room) worked well (it was really cold outside but we were comfortable), and the beds were awesome, firm as we like them and with two sets of pillows. The water pressure was weak but showering was ok. Hand washing dishes was slow with the weak water flow, but the dishwasher worked great. You do need to be able to walk up the stairs. The building was quiet and the entry with the code very convenient. Communication with the property managers was great. We will come here over a hotel every time we can, I strongly recommend it.