I unfortunately didn't get to meet Chris but he was in touch well before I got to DC and during to make sure that all was good with my stay and if there was anything he could help with. I did meet his 2 legged and 4 legged housemates and even his neighbour and they were all very friendly and easy going, the 4 legged ones especially loved a pat. The room is perfect for what you need, bed was great (I slept really well) and had it's own en-suite. That alone is better than most hotel rooms I've stayed at. Didn't use any of the house facilities as was only there late at night ready for bed but it has the works if you want them with big tv, living room and kitchen (and apparently back garden).
This was my first airbnb experience and I admit to being nervous about it but it was better than any impersonal hotel experience. I'd stay at Chris' again if I make it back to DC anytime soon.