Any opinions about Filen?

Here are my Filen testing notes from a couple of months ago. It's a habit of mine so I don't forget why I discarded some options.

• It's impossible to upload anything through the Win app. You can only set up sync folders where you need to place files. Through the web app, however, you can upload both folders and files.
• The desktop app disappears as soon as you switch to another app, and you have to launch it again by clicking on the shortcut.
• You can't access data in the cloud via a virtual drive or anything similar.
• In short, it's unusable for my use case.

Edit: Be aware that according to Matt@lemdro.id, the above issues have been rectified in the meantime, so you should give it a go before deciding.