Things to add:
*Ability to sort dwellers by remaining health. This would be a GODSEND to healing everyone. If you could click on the DWELLERS tab and scroll through sorting dwellers by name, maximum health and remaining health, that would be awesome. Shouldn't be too hard to implement since you can already scroll through special stats by clicking on SPECIAL.
*Make the "auto-zoom to any event" a feature that can be DE-selected. I don't normally want this, especially in my larger vaults
*Add a "close window" button on all windows. I'm sick of having to click outside a room to close some windows, especially when the game then auto-zooms and centers on where I just clicked
*STOP AUTO ZOOM AND CENTERING WHEREVER I CLICK! I CAN CONTROL THE CAMERA JUST FINE MYSELF
*Stationing people in the storage room should increase capacity (someone organizing the room equals maximizing space. makes sense). Something needs to be done with them, because they are otherwise functionally useless. I have never actually needed the iincrease in weapon/outfit storage they provide.
*Pregnant women fleeing events is sixist as hell. I see no reason why a fully healed pregnant woman should run from anything. Maybe run at half health to protect the baby, fine.
*Increasing storage area doesn't increase the amount of stimpacks and rad away. This makes no sense. It also makes no sense that the maximum stimpacks and radaway you can store in the respective rooms is only 35, but you can produce 12 at once. maximum should be closer to 100, unless you also add increased storage from the store rooms. This limitation is especially annoying considering that every time I launch the game after being away for a while, my entire population is at half health and half radiated. It takes FOREVER to get them all healed again.
Barracks rooms are currently largely functionally useless. Other than expanding capacity of the vault, all they do is get women pregnant. Maybe you could be able to assign pregnant women and children to the rooms to speed their birth/development into advlts?
Bugs I've seen:
*Game frequently stops responding period
*Game occasionally gets "stuck" on a room. Even though you can click around the game and access other functionality, that particular room name will be written over whatever other room you're currently in, and any upgrade attempts will be for the "stuck" room.