Maybe my answer will be too late, but here are my two cents
I did use AiCloud for years, it was a great way to help my mom get to see shared files. She is not tech savvy and just telling her to VPN something would get her a stroke. So AiCloud app for iPhone and iPad was really useful, especially for large files.
Nevertheless, some time ago, most ISP started using CGNAT so AiCloud stopped working. And after that, online cloud storage services got more popular with even more space, in this case, when AiCloud stopped working due to private WAN IP, she easily move all her needed files to iCloud.
I would assume many people experienced the same thing, AiCloud was really helpful at first, but now there are easier options for regular users, like OneDrive, Google Drive, etc.
I would ditch it, and the benefits of Merlin surpass the ones of AiCloud.