$6/mo. for 150GB storage, which for stuff like the OP is fine. At least when I had it, they were very precise as far as security concerns. It is the only service I've ever had where if you delete it, it is gone, without annoying follow-ups. You disappear. Their 2TB isn't that much more than Google One. My only concern is the health after their split. It looks like 2 years ago they hit a rough patch. That was after my time with them. My experience with their GNU/Linux client was good, which is another rarity.
Discussion
Interesting. What do you mean by health after their split? The company split up?
If you go to spideroak (com), it has a different focus. There is a link to crossclave (com) for the download of One. Both sites also reference refactoring. Crossclave has working like moving products to on-prem, etc. Is One orphaned? Are the suits selling out to the money machine of the day and sacrificing the original product? I don't know. All of this happened since I used it. While I was trying to figure this out, I found somebody on Reddit who was leaving SpiderOak One and referenced this list:
https://comparisontabl.es/cloud-storage/
It is a familiar story. For some reason companies can't just stick with what they do well. You would think that a Snowden certification on the product would get you a rock solid brand. That was why I originally got it.