We have used the Gold charts from Panama
. In some areas they are almost right on (most places we sailed in French Polynesia). We just cruised from Savasavu, Fiji
along the north coast of Viti Levu (if you look at a chart it looks like there are only reefs
with no room to sail through!) and the Gold charts were nearly perfect. We bought a waypoint listing in Savasavu and it matched perfectly with the Gold chart.
Overall, sailing in the North Sea, the Med, the Carribean and the pacific we have found these charts to be good..from talking with other cruisers I think at least as good as any other choice.
Of course everything depends on when the original charts were made (Calder's Chart book is a great read to scare you!).