Great choice!
Yes, with MacBooks you aren't supposed to look at the temps
The cooling is designed to push the thermal limits of that CPU (prioritizing silent operation over keeping temps as low as possible), but as long as it's not throttling (it shouldn't and it most likely won't, like, ever.) you are fine. You shouldn't have any problems with durability or system stability neither.
Yes, with MacBooks you aren't supposed to look at the temps
The cooling is designed to push the thermal limits of that CPU (prioritizing silent operation over keeping temps as low as possible), but as long as it's not throttling (it shouldn't and it most likely won't, like, ever.) you are fine. You shouldn't have any problems with durability or system stability neither.