I find this place very interesting as you need to go through many steps before you can reach the destination. (Like going for an adventure) I didn't expect the food quality here to be quite good as the reviews at hungrygowhere were mostly bad. The dim sum here are quite unique compared to other chinese restaurants. But the tea served here was quite low quality.
As for the service, the reviewers were all right - Don't expect any service here. They will only pour the tea for you once when they served the teapot, thereafter please pour yourself. And don't expect any smile from the staff as they were mostly quite grumpy. As long you don't bother with the service, just enjoy the food and the great view and you'll feel happy to dine here! But do note that the revolving will be jerky at certain point sometimes as this is a very old building. Overall Prima Tower is still a very nice place to dine at with the panoramic sea view from PSA to Sentosa! At least a different view from Marina Bay!