I've played all over the world and the Ocean Course is one of the best I've played. Service was good, caddies were also helpful. Not Pebble Beach, but can't think of too many others that compare. Couple items could be improved; food selection at the turn could be expanded (I stopped there a few times over the weekend due to rain), SG $4.50 for a can of diet coke.....a bit extreme.
There is not much to do in Bintan but golf, which is fine. It's worth a weekend trip from Singapore. Plan to play 18-27 holes on both Saturday & Sunday. Take an afternoon ferry back. I'll definitely do it again.