Dennis and his wife are absolutely great. Very helpful and friendly since the very beginning - they welcomed my polish-speaking parents with a lot of warmth and good advice. My parents had a wonderful first airb&b experience. Not even mentioning how convenient is the location - walkable distance to all DC biggest attractions. I ended up accidentally stealing Dennis' parking permit and he was still cool with that (I hope you got it back by now - sorry again!). Awesome hosts - no 'buts'.