Macau currency: personal experience
1. The Hong Kong dollar is really accepted everywhere, and the delivery is also given by dollars that are at any cash register and from any merchant. Patakov give only coins (1 palat and less).
2. Lunch in a good Portuguese restaurant without wines for 1 person costs 200-250 patac, in Chinese – a little less.
3. High-level hotels cost about 1000 patac per night, if you are lucky and there will be some special offer. The usual price is 1500-2000 patac per night.