Their software quality for the latest and greatest updates leave much to be desired, but they take care of their existing devices better than anyone else on the market.
For a phone. Android has set the bar incredibly low. Kobo has supported their $130 Kobo Touch eReader from 2011 longer than any iOS device. On PCs its trivial to run modern software even on ancient hardware like a Pentium 4 with Linux/BSDs. Even Windows can let you easily get 15 years out of a device.