Pretty much average dim sum, nothing to write home about.
Royal tea house isn't too royal after all, like many have reviewed already the dim sum is 'decent', which is true. But service is a bit slow and as expected with most dim sum places, in attentive. Hard to wave down a waiter or waitress. You really gotta try pretty hard and fight their attention.
To be fair, I would normally give it 3 stars for the food since the dim sum is decent but because they missed my order and don't event seem to care. Terrible service, you can't expect good service at dim sum places but this place is definitely below par.
Do not plan on returning.
Edit: to top it off in now dropping this to one star, not only did they miss our order which we asked about 3 times and they still missed it. After asking 3 times they told us it's sold out! What a joke, could've told us when we asked about it the first time, really disappointing to say the least. Wow