Been using it for a couple of years now I think. Haven’t seen a reason not to like it.

There’s a thread in GitHub where the privacyguides.org guys discussed some flaws in the encryption but that was at the very beginning, I remember reading those have been solved apparently.

Pricing, well, it seems cheap but honestly I think it’s just because we are used to seeing outrageous prices for ridiculously small amounts of storage. Thinking about it, 30 eur for 100gb is not cheap at all, like some other comment says when compared to physical drive prices. Plus, offering lifetime is a common marketing technique to attract customers used by small or starting businesses. I don’t know if that is the case here but it certainly isn’t an automatic red flag for me. I don’t know if they are gonna be around next year or 5 years from now, but I’m willing to take the risk. They claim to have lots of users and be cash flow sustainable, plus they keep developing and are getting into business features to attract that kind of customers, certainly doesn’t look like a business on life support to me.

App and code-wise, they are much better than they were a year ago. Android app is still a bit janky sometimes but I don’t use it a lot so I got not much to say, other than I can see my files and upload something small once in a while just fine. The desktop client is amazing, the best functioning client for Linux that I have used from any service, or from the few services that have a Linux client at least. The clients are open source and since the service is e2ee you don’t really need to see the server code if the client encryption is done correctly, which apparently there is no sign that it isn’t, as mentioned before.

Overall I would say you can use it, but keep a backup somewhere else just in case, which is just the thing that anyone should be doing anyways.