I booked with Regent because of the small number of passengers and because that I hoped the food would be good. The number of passengers was fine the food wasn't. The ship was excellent and the suite fine but the cuisine lacked consistency. Here are my comments on the venues.
Compass Rose - adequate but not excellent, two bad breakfasts, and two bad dinners.
Chartruese - A disasaster, food not to restaurant standards
Prime Seven - Excellent booked it twice.
Setti Mari - Excellent ate their 3 times and the food and service
good but you had to get your appertizers on your own.
La Veranda - typical cafeteria cruise ship cuisine, no better no worse that any other;
I had previously returned from an Oceania voyage and found that the food far superior to that of Regent.