I had used Mega since it was introduced, and I had recommended it before with its generous 50GB free space and Linux support. However, Mega had become unreliable about a year ago, when it started to delete files after bad syncs. Be very careful about putting important files. Also sometimes, upload speed is very slow (took me over a minute to upload 120k file) and the sync on the iOS became really bad - it always get stuck on "Downloading...", but fails to sync. I hope they fix the problems, but until then, I've decided not to use it.