http://www.hilton.com/en/hhonors/rewards/vip.jhtml

6 nights for all these rewards, though a full week is 7 nights the last I checked .

If you check in on Saturday, you have to check out Saturday. When vacationing, I've always gone Saturday to the Sunday next week. 7 nights, 7 days (5 full days + two half days = 7 days).

Do you think this is a "catch" to get one night paid or one night out of standard HHonors rewards?

It's still a good value, but I wish it was a full week.