I toured the center as well and really liked the director and the staff. We didn't choose to enroll because another center is more convenient for our commute and closer to our home. A coworker of mine just enrolled her four year old in the center and she really likes the staff and finds the teachers, at least in her son's room, to be really caring.
She had previously had her son enrolled in another Rockville Day Care Association location and she actually likes Wintergreen better.