2021 Polestar 2 w/ 92k miles

Hello! I'm purchasing a Polestar 2 with about 92k miles. What should I expect at those miles? What should I be looking for on my first drive? Can I check the battery health myself or do I need a technician? I feel I'm getting a good deal on it, it's less than $16k. I'm scheduled to pick it up on Sunday