They also closed the RC at the DFW airport location. They did that last year sometime. For awhile, they were comping bkfst for Diamond, but now they've quit doing that.
I stayed at the Cambridge location twice in the past two weeks and the RC was busy both times in the late afternoon and morning.
I have noticed that many of the RCs are closed Fri evening thru Sunday morning, so if you're doing a weekend getaway, there's nothing special about burning points for RC.