I drive eco 80% of the time and sport the other 20 so I may try out normal just to see if I can tell a difference. Any time I come off eco/commuting, I figure I may as well enjoy the sport mode since I got the GS over the ES to occasionally have more fun. The F-sport would have been wasted on me as I never drive aggressively enough to appreciate the upgrades.
I've had my 2015 for almost 2 years and driven it from 19k to 30k miles @ an average 27mpg.