2018 w/16,000 miles here, performance edition. Went skiing, so first time charging to 100% 299 max, but stopped at 284 miles, so 5% loss, however, on return trip, again to 100%, it showed 290 miles this time, so only a 3%, so thats interesting.
I charge car daily to the max driving "daily driving" limit, so about 260 mile range, that's about 86%.
I drive the car pretty hard, love the sticky Michelin Sport 4S tires, rail on them in the canyons, so i enjoy the crap out of the car. Did switch to Michelin AS3 all weather for ski trip, heard the 4S tires turn into hockey pucks in icy conditions.
Driving the car in all variety capacities i think exercises the battery, meaning i push the crap out of the car sometimes, other times, i chill and cruise. It's like your brain and heart, it needs a good dose of exercise. Babying it hurts it and pushing it constantly also hurts it, so balance i think is key.