Well, for whats its worth, I returned the 2018 13" MacBook Pro. Connected to my 5k display the fans would constantly be on and it got pretty hot. Returned it and went back to using my 2017 15" MacBook Pro. I did like the keyboard on the new one's though. I feel like Apple tried to cram too many cores into these machines and they generally run really hot, atleast the 13" i7 did in my case.