This isn't cheap but it gives you the most control over everything and delivers a much better experience overall. What I and many others do is rent or co-locate a dedicated server at a datacenter with a fast connection. If it sounds too good to be true it probably is. If you're that lucky friend, all you need is an invitation. The problem with streaming from cloud providers is they throttle connections, limit the number of requests, can suspend your account for overuse, and delete your files if they suspect copyright infringement has taken place. Plex is a powerful service that lets you stream your media library to multiple devices and share that content with friends and family. If you really want to do something like this now with Emby you can rent a cheap VPS to host Emby server and take care of the transcoding if needed, use acd-cli with EncFS or rclone to mount the cloud drive and handle encryption. Maybe things will improve in the future but currently it just not there. I would absolutely not replace an in-home server or a hosted dedicated server with Plex Cloud at this point in time. There are lots of drawbacks to hosting your media in the cloud and relying on Plex's infrastructure to take care of the delivery. Each VPS has 1Gbps unmetered network connection with 200Mbps guaranteed.

Each Plex-V host system is connected with 10Gbps Internet connection. I experimented with Plex Cloud for a bit and IMHO it isn't as great as it seems on paper. Plex Media Server comes pre-installed on an Ubuntu 16.04 KVM VPS, you have full root access to the server and can configure it as you need.

Plex cloud hosting