I bought a 2018 GT new than now has 133k miles. I've driven it hard and abused the battery by fully discharging and recharging twice a day when I commute (once at work, and again when I get home). Plus fast DC charging when I take it on road trips several times a year. I've also been using the watchdog app religiously to monitor battery capacity.
See below.
I also added a 700 lbs custom steel skid plate under the engine because I tore off the fiber (paper board?) shield off roading up a US Forest Service road. Even before that, it has been little under powered, especially climbing long grades when the battery runs out.
It's been dealer serviced regularly since it was new. Never had any significant mechanical issues. Only reason I've had to have it towed was due to a flat tire.
Originally I could get as much as 50 mpg if all I was doing was my daily commute (36 miles each way) Recently I've only been getting between 25 and 30 mpg due both to the battery age and a recent trip from Seattle to Los Angeles and back.
Support for the CHADeMO plug is being phased out by the major charging networks in North America. On the trip to California and back, several charging stations I have used in the past no longer have the CHADeMO plugs. More and more often I'm finding that the only CHADeMO station, where they do exist, is blocked by someone with a CCS vehicle.
I've debated replacing the battery, but I don't think it makes sense given the rapidly dropping resale value. I'm only intending to drive it another two or three years. If I can find someone who will do a CCS or NACS conversation along with a new battery for a decent price I might go that route and keep it going for another 150k miles or so instead of replacing it.
In short it's been a nice and reliable vehicle that I have had lots of fun with. But I wouldn't buy one today due to the lack of (and decreasing) fast DC charging infrastructure in the US.