The battery on my 13" MBPr, which I bought on 2015, recently begun to swell. Apple support said that a swollen battery is very dangerous, then proceeded to confirm out that its warranty was expired and there was no replacement program for the 13", contrary to the 15" MBPr from 2015. Battery replacement 300€, which is frankly preposterous.

I shortly contemplated getting a new MBPr, but with all the stories circulating about the butterfly keyboards and the touch bar, went with an ifixit battery replacement kit, about 100€.

I'm generally very reluctant to carry out these types of sensitive repairs myself, but opted to do it with help from a friend. If, instead of buying a new one, the customer prefers to keep a 2015 MBPr and is even willing to run the gauntlet of carrying out a difficult repair themselves, something's seriously wrong. And Apple should take notice.