Thanks, Happy! The hotel's PDF fact sheet shows 8 executive suites. The 8,000K GP points per night is confirmed for an Executive Suite. When I initially called, I asked to upgrade for 6,000 GP per night for three nights at a rate of 17,000 yen pn. The CSA told me that for 8,000 GP per night I could get the free suite for the three nights - no brainer, so I took the free suite.
Been to Osaka several times on business and stayed at the Hilton and New Otani. First time at the Hyatt. Taking the family, so the distance from central Osaka is no big deal. Wife is saving her shopping dollars for Korea - Tongademun and Namdaemun.