Recent builds seem to have improved battery life, which is much appreciated. I find myself using and liking Endless OS more and more.
An easy to use, probably GUI and builtin backup method would be greatly appreciated.
For people out an about in a nasty world the ability to encrypt the file system, or at least the home folder would also be a great addition.
I am guessing the lack of backup and encryption are probably complications stemming from building on OSTree. It is perhaps ironic that a system designed to protect itself from modification/hacking does not allow the same privilege for user data. (Sorry about the sarcasm.)
bill