Alex,
I think Deal offers many many fine holes, and with a superb tempo throughout the round. There is such a beauty to the appearant uncomplexity of certain holes compared to other holes where one is laid bare by the topographic givens of that certain portion of land where the other more appearant holes are found.
There is such an array of greens contours, and greens surrounds that one savours after the 18th hole. From the saucer like 4th green to the wave thrown 16th green, to the tunnel 12th green, one really senses a certain unforced continuity throughout the course.
Probably every ounce of that site has been used to its potential, with such an array of holes as to allow one to appeciate the difference without sensing any are out of character with the whole course.