Along with other comments, we have at least 10 fully working mbp 2015s. Many with upgraded 2tb storage. All used for audio work. Running 10.13 - 10.16. Little t

Along with other comments, we have at least 10 fully working mbp 2015s. Many with upgraded 2tb storage. All used for audio work. Running 10.13 - 10.16. Little to no issues and I still buy up any I find online. Absolutely fantastic machines.