I tend to think that SSDs, reliability-wise, are just like any other hard drive. Some are good and will last many years, some will die after a few months. I have a NAS that has 2 30GB drives in it (mirrored RAID). It's 19 years old. I've had to replace both fans in it, but it still has the original drives. Of course after 19 years I don't fully trust them, so that gets backed up regularly. But, I've had others fail in a very short time. SSDs are the same way. Most newer ones will probably last many years, but there are a number that fail quickly. The lesson here is: back up your data. Of course, if you want speed, SSD is the way to go.