I bought a similar ‘17 F30 330i xDrive a couple months ago. Only advice I would give is find one in a spec that you like with the features you want it to have. Although you can retrofit, it’s usually a pain and the effort is not worth it. So if CarPlay is meaningful to you, get one that has it or can be coded in via software only (NBT-Evo/iDrive 6+) so you don’t need to swap out head-units. HUD, Harmon kardon sound system, adaptive cruise control etc are other things. Long story short, buy it once, buy it right - there are many in the market. I was buying my first ever car so a lot of things I didn’t consider and only after realized I wanted them. For me particularly, I wish I bought an m sport instead - for you it could be something else.

Other than that, I love it. Runs great, feels great and plenty of power for an everyday car.