Being able to sort saves by more values could be nice, such as playtime, research progression, world seed (to group together multiple saves with the same seed), etc.

Personally, I have no issues with the current UI, however I totally understand that this is because its just what I've gotten used to.

As for the changes to the quick bar, I may need a while to get used to it but I can see how it is an improvement and I think that forcing the player to make use of ...

One thing that I think has been ignored about turret creeping is that it comes in multiple forms, the particular form that I use is to just stuff my inventory completely with laser turrets and then give absolutely no concern to picking them back up or preventing them from being destroyed, I find ...