I don’t really miss anything, especially not the weight or the keyboard.
The touchbar has never been of use to me though. It doesn’t annoy me much, but the user design for changing volume requires more clicks than the non touchbar, so it’s obviously terrible design.
I don’t miss any of the ports, I thought I would, but it’s not like there was an Ethernet port so I still needed a dongle for the 2015 version.
There’s certainly room for improvement, but the 512gb 13” version isn’t crazy expensive for what you’re getting compared to other laptops, at least not in my country.