The recent change of the free tier so that it no longer allows me to pair all of my devices was the last straw, and I've moved off their service.
So now I am using an extension to make iCloud work a lot like SmartSync
Disclaimer: I'm ex-Microsoft employee and I'm very happy with OneDrive.
It felt like price increases were to pay for new features like Paper, which is not what I ever wanted from their service. I'll keep an account on the free plan, since many services have Dropbox integrations.
You can take a look at Backblaze B2 or Hetzner Storage services (there are two kinds in this) for cheaper and lower priced options. I don’t have experience with either of these to provide a strong recommendation either way.
I’m paying for storage that “just works” with no time commitment on my part.
For $10 you get a significant amount of storage, don't have to run your own NAS (or shell out the capital expense of buying it), backup drive without redundancy, or pay any electric bill related to it. You also get very nice integrations into other platforms.
Just my take. Many have different opinions.
It’s pretty hard to justify vs the extra utility you get from Google One and Office 365.
Essentially, if $10 is a lot for you, they're likely not interested in your business and that's ok.
[1]: technically 1TB for <5 users but no Google doesn’t ever cut off anyone. I consider it more as a “fair use” policy.