I use the macbook air 2018 and serves me pretty well. I did have the infamous ‘e’ and ‘i’ key problem and sent it in to get the ‘top case’ replaced. I’ve had it back now for 2 months with no issues. Great machine. Laugh at dual-core all you want but all things considered, I barely ever wait around for this thing to process anything and have 100 windows open at once. Sure video rendering is a bit slower than on my quad-core desktop, but if you value portability and don’t mind a few minutes more on smaller-medium renders, this machine is fine.