When we entered the house the furnishing and decorations made us directly feel comfy and homely. We could find everything we needed in the house, towels, kitchen utensils, extra pillows etc. We definitely enjoyed the AC, because it's been some extremely warm days in DC. The whole house was very clean and tidy. We had a big room with a big bed which was also very comfy.
Unfortunately we only saw Shaun twice during our stay. When we met him he was very kind, sympathetic, welcoming and approachable. We would have liked being able to spend some more time with him, but we also had a tough schedule.
The only 2 negative things to mention were that every uber driver asked us, whether we were sure that we're staying there, because they said it's not the best/safest area. That was a weird feeling. Nevertheless nothing bad happened to us, but we avoided to walk around alone outside when it was dark.
What should also be considered is that if you're not familiar with the metro system in DC, it takes quite a while to get into the "city" - meaning National Mall etc. Yes, there is public transportation available just around the corner, but it's "only" the bus which has a confusing schedule and it's not directly going downtown. You either have to switch buses or go to the metro station by bus. It's totally doable, but the first few times a bit confusing and annoying. Once you get to know the drill, it's okay (just takes some time).
But a big advantage was that Shaun already had some metro cards, city maps and metro maps in the house - very helpful.

Generally we'd say it was a great experience staying at Shaun's place!
Thanks for hosting :-)