It just feels more upscale and elegant. Not stuffy at all, but sophisticated. The Martini Bar is the best! So much fun trying out new Martinis and watching the amazing bartenders do their thing. Not as many kids onboard. People dress casually for sure, but nice casual. Zero indoor smoking, including the casino. Yay! On Edge class the bathrooms, in all categories, are luxurious. Very large glass door shower stalls. Plenty of room for storage.
I could go on and on, but take a look at YouTube videos. Some people prefer S class, with traditional balconies, but we prefer Edge class. We sailed on Ascent over New years this year and it was fabulous! Food is really good and service is exemplary. You really need to try it!