The storage system needs work. I hate not knowing how much space I have left/free. I have heard* that once the X1 reaches the storage limit it will start going through installed games that are older and delete them, or deleting certain files that you no longer need. Example, if on Ryse you are on level 3 it will delete levels 1-2, or deletes 5-8 and will start installing them as you are playing. This is just a post I found on Neogaf and reddit, not sure how true it is. But yeah the storage management needs a lot of work.
I'd rather them focus on the party chat first and optimizing the OS.