Not having USB3 is annoying, the CPU is a little slow and the batteries aren't what they used to be, but the things still works and gives me no problems.
I would like to get something smaller and lighter but all the affordable light laptops come with at most 8GB of not upgradable memory, whereas mine has 12GB and upgradable to 16.
What I ended up doing is getting a desktop computer for anything that needs performance and every time I look at anything apple, it just looks like I'm about to get on a treadmill of shelling out a couple of thousand dollars every year without the ability to own, upgrade or repair any of my devices.