On my first 991, I drove about 80 miles per day and it was my only car. It did great, my only mechanical issue was the transmission control module at 60k miles went out. I’d recommend you pick up a good aftermarket warranty like Fidelity Platinum. Also make sure to sit in a car with both 14 way and 18 way seats to see which is more comfortable for you. My first car was 18 way, but my 2nd is 14 and I much prefer it.
I’m 6’4 and fluctuate between 200 and 250 depending how lazy I am. The 18’s were OK at the lower end of that spectrum, when I get higher they are uncomfortable. Maybe I should get the 18’s just as a motivator to stay skinny lol!