This is a well appointed apartment, where you can see the owners have gone to good lengths to make it welcoming for guests, with lots of good quality amenities. Location is great too, an easy walk to Eastern Market station, and less than 10 minutes by car to Union Station.
On the flip side, this is a basement apartment - so it gets almost no natural sunlight, the bedroom is hard to heat up, and the HVAC motor is right across the wall from the bed.
So all in all - I would recommend for a short visit, but if you need a place for a longer term (I was there for three weeks), this may not be your best option - especially if you need to work from home, as the Wi-Fi is unreliable and the router is with the owners upstairs.