Well first of all congrats! Which model (engine)? M Sport? Since it has a relatively low milage, and since you are buying from a BMW dealer with12 months warranty, there's not too much you need to worry about whilst it's under warranty.
It's hard to know how to answer your question without a few more details about the car itself, or your previous car history to give you a comparison for what to expect. Assuming it has FSH then you should just sit back and enjoy the car, they drive very nicely for it's size, build quality is great, and if you decide to there are a ton of fun mods/upgrades to do later on
