As far as I have seen, the database is complete over Borneo. Minor obstacles like 400ft high radio mast are all included.
Spurious warnings are usually triggered at Tawau and approaching KotaKinabalu AP when decending over the terrain from the east. Elsewhere, on the ILS, there haven't been much nuisance warnings.
However, nuisance/spurious warnings are high and almost a norm when conducting VFR flights and approaches into rural airfields on GA operations such as those on the Dornier or Twin Otter.
However all these flights on the Dornier and TwinOtter operating into the interior are conducted in full VFR.