Custom House should be a very good trader. Although it is a single bedroom, it is weighted as a 2br in interval for trading purposes. I've been able to trade into it a few times in the past. Wonderful location to experience Boston. I've done it in spring, and twice at Christmas/New Years. First night from the observation deck is wonderful.
It has been unavailable to me for the last year and a half. That makes me think that points people are killing it because they're breaking the weeks with 2-3 day visits.
@henrythefourth