Blockchain technology used for data storage platforms is an excellent idea. However there are so many projects in this niche..
Totally agree there are a lot of people in this space but ask yourself these questions:
Are they fully decentralised systems? if YES, then that will mean you need to download the whole blockchain to interact with the content, you metatag data and consume the data.
Are they an existing cloud storage company with 10+ years experience? If the answer is NO not how do you know its not just all a pipe dream, will they have the backbone of partners in place to make it a reality?
Files.fm is reliable company with a proven track record, please don't just take my word for it take a look at the statistics itself...
https://www.similarweb.com/website/files.fm 