@dlam - was the QF first suites a free upgrade? Otherwise I thought if any leg is booked as a first then the whole RTW ticket is priced at the first class number of points.

although 2,000 points more for RTW is enticing, it's incredibly hard to get availability on all the legs and have it line up to make the booking. And then once you travel on a RTW ticket, you can no longer make changes to the booking.