We went for a short bit on Sunday afternoon from 3:30-5:00 and they were low on staffing. While it was nice for the kids to get the run of the place to themselves without crowds, it also wasn't the full experience. It was definitely worth it to go back the next day (which we planned to do anyway with the 7 day pass). They were better staffed at that time and it was great! So much of the experience here is with the interpreters, so I'd ask ahead about the days you're coming if they're days/times they'll be well-staffed. They said Mondays are better staffed than Sundays because more tour groups come through.