Using Zwift on Mac Book and Mac Air

Due to space in my house and $$ I am going to be using Zwift on my 2013 Mac Book. I would like to hear from other Mac Riders about the pros and cons.

I started Zwifting in March using a Mid-2011 MacBook Air running High Sierra. Everything connected via the onboard Bluetooth just fine. Only thing that would happen was that the fan would kick up to max and keep on running for the entire duration of the session.

Following a computer reshuffle, I now Zwift on a 2010 iMac running Sierra, connecting all the devices via ANT+. Ran a USB extension cable from the back of the computer to get the ANT+ dongle just behind the front wheel. Everything pairs fine and works well, no dropouts.