We were drawn in hook, line and sinker by the UNESCO World Heritage rating of Senado Square and surrounds in the original Portugese part of town. When we got there, after all the hassle, we found it's just a bunch of facades. Very beautiful facades, absolutely, but that's all there is. We found a humble & grubby hall with some info on each building, and the environment there reminded me very much of Havana in Cuba. The only recognisable cafe or restaurant type places we could identify that might have a bite to eat were McDonalds and Starbucks, which seemed an atrocity and so wrong for that environment. We did try some delicious local pressed beef at a street stall. That was in fact the only highlight of the whole, long, tiresome day. There's nothing to see, and there's precious few plaques or signage of any substance in English. There's the basic street signs, but you really need to read up thoroughly before coming, and plan exactly what you want to see and why.
It was such a pain getting there; waiting at ferry terminals, sitting on the bumpy ferry, losing internet access altogether once we were away from Hong Kong waters, taxi'ing to the Square, and back again. There's two different ferry ports, or maybe more. We were taken to the wrong one at the end of the day by our taxi driver. There were a lot of people on our return trip and coming back into Honk Kong through immigration took for ever. I would never, ever recommend this as a day trip to anyone, and I really have no idea why people have done so.
It annoys me, because there is so much more we could have done with that day in beautiful, clean, sophisticated Hong Kong. As soon as we got off the ferry and saw the weird, ugly place that is dowdy old Chinese Macau, I knew we'd made a mistake. The crass, glitzy, Las Vegas like structures you pass installed on this unattractive landscape are bizarre - really ludicrous, and we had no interest in inspecting them more closely. But then we're not gamblers!
Overall, I'm very glad UNESCO are protecting the Portugese part of town, but I do not think anyone with a genuine interest in heritage architecture should go to Macau for a just a day trip. Stay for at least one night and maybe two; do your homework, and explore on foot, if you have the time and inclination. We will never return. Just feel there are so many more engaging places to go in the world. It is a tourist haven for mainland Chinese, and not a place for me and my loved ones. Very shabby and simultaneously inappropriately glitzy... Weird combo. Just our own personal opinion obviously.