Inmy experienc SSDs fail hard and without much warning though they are often designed to try and go into a read only mode to prevent further writes. That being

Inmy experienc SSDs fail hard and without much warning though they are often designed to try and go into a read only mode to prevent further writes. That being said, all the SSDs I've had fail on me were nearly new like just imaged/deployed, had power issues that maybe killed the controller vs the storage itself, or just died. One drive I was using for VMs at home just stopped running and when connected prevented the entire PC from posting. That being said, I'll happily take the speed increase of solid state over spinning disks given I'm not storing media, at least for consumer sized drives. 5 years is much more realistic for general tech lifespan before a newer/faster/cheaper/more efficient upgrade in the enterprise space and definitely the consume space.