Boarding started at 4 pm. Luckily my wife and I arrived excactly at that time and stood in line for only 1½ hours to check in. Less fortunate guests who arrived a little later stood in line for 3-4 hours and Regent's staff couldn't care less. Apparently they had some kind of computer problem but absolutely no senior staff/officer bothered to get out among the guests to ease the pain or give information. They hid in their offices.
With some exceptions the staff has an unengaged, mechanical approach to service - having (barely) learned what to say and do but their hearts aren't in it.
The quality of dinner cuisine is generally good. Breakfast buffet is good. Lunch buffet: Neither presentation nor selection is acceptable and the service is lousy. Pool grill serves hamburgers made of frozen industrial made beef patties(!).