I would say that the number one thing going for this place is location. It seems to be only a 12-minute car ride to many of the major attractions in D.C. It's also walking distance to a number of fun local restaurants.
However, the house itself could use some TLC. First off, the house was mostly clean when we got there but we still found a pair of random contact lenses (one on a wall, another in our bed) and a used q-tip on the ground.
Then there was an issue with the fans in the rooms. In one of the smaller rooms, we had no way of turning the fan speed down as the chain was broken, so you could either have a high-speed fan and a light, or no light and no fan. So that wasn't great.
Also, there was only one fan remote for two rooms, so we accidentally kept turning off or on the light or fan in the other room when using the remote in our room. Not a "fan" of that little fact either. Plus, the remote had a broken back, and there was no tape in the house to fix this.
One of the chairs in the dining room was broken, so we set that aside as there were plenty of chairs. On our first night there, the ceiling in the dining room leaked when my wife took a shower. We later learned that the overflow valve was broken, and luckily the leak stopped after my wife was done showering, but this leak thing happened twice.
The keyless, front door keypad stopped working not long after we got there, so that was frustrating.
And there no dressers in any room, nor are there any flat spaces to place things, so we often just left stuff on the ground, or in our suitcases.
If you do use the trundle bed in one of the rooms, understand that the door will not fully open as the bed blocks the door from opening.
The backyard did not appear to be cleaned in a while as there were cigarette butts on the ground and the sitting area was dusty with cobwebs. Plus, some of the other backyard furniture like the table and chairs appeared to be falling apart.
The venetian blinds throughout the house were also in various states of disrepair and not all of the windows could be opened. The air conditioning was good, but only seemed to be available downstairs as there was no vents upstairs, so rooms could get hot. And that's where the issue with the fans came into play.
Finally, I would say that the house is not particularly quiet with traffic passing by at all hours and the venetian blinds did not provide much in terms of darkness. So if you are a light sleeper, I would suggest bringing an eye mask, noise machine and/or a sleeping aid.
To be fair, Karl was quite responsive when we texted, it was just that none of the issues we brought up were ever remedied.