Mark's place is just what it looks like! Tall ceilings - bright light. Great location especially if you want to be right near Georgetown. The check-in and check-out process is very simple and really nice that it doesn't require much waiting or interaction with the host.
For us, we had a broken thermostat which no one else mentioned so it must have been a one-off broken heating scenario and we showered right after one another so the water didn't stay hot for too long :)
The place is decorated nicely and the pillows are VERY firm! The kitchen area is lovely and the space is great for a short stay. Ubering to Logan circle was very affordable as well.