I’ve been using an external monitor for few years now but everytime I switch back to the laptop I get angry how crisp it is. Mac OS doesn’t play well with externals. In addition I made the mistake of using someone’s iMac 5k and the text was crispy. I actually purchased it soon after but didn’t like the refresh rate so I returned it and have been waiting for the 120 Studio Display but they moved it to the pro for more than double the price.