So I wanted to know if anybody used Filen and have a good experience with the Life Time thing

So, presumably, the service hasn't been around for anyone's entire lifetime, so how would one know whether or not it's a scam?

In any case, how could any company actually validate that claim? It's literally impossible, unless the cloud service has been around for at least, say, 75 years. Even then, that's no reason to believe them, they could easily go bankrupt at any time, particularly if they are selling bullshit "lifetime" policies with unsustainable prices.

So is "lifetime data storage" always a scam? Yes, yes it is.

some a Cloud Solution with my data

Ignoring the bad grammar throughout your whole post, the best "cloud" storage is your local NAS. You don't have to trust anyone with your data, you don't have to pay anyone, you don't have to deal with scams, you don't have to have internet access, and your data can't be randomly wiped because whatever cloud provider doesn't think you should have access to their servers.