This game is based on a really nice idea. It's just not completed yet.
Let's start out with management. Since the tiles you are working with is not directly underneath the stuff you're actually building, it's impossible to know if you're for example deleteing just this room, or also deleting the wall for the next room, which would mean all of the oxygen sucked out of your base.
Another thing is, that you can't move citizens around. This means, that you'll have to wait with (for example) destroying a room, because there are people in it. It can also be annoying, when you know theres a fire in a place, and you just have to wait until somebody discovers it. Even having the rooms alarm on won't help you. People only notices fires (and mostly also intruders), if they accidently walks into them.
A third thing is bugs. There are bugs everywhere in this game. One bug happens when you have an intruder. You then mark the intruder with an icon saying "kill this man". Even if all of your citizens are security guards, they can just be standing, looking at the intruder destroying all of your reactors, and they will first react, when he actually starts shooting at them.
OMG thats annoying.
Another bugged thing is the chamber between the base and space. Here you have two doors, that are never ment to be opened at the same time. Despite that, i've had a whole base killed twice, because the doors sudenly opens at the same time, and everybody is sucked out into space or suffercated. I've also tried people just standing in this room with the outer door opened, waiting until they die, and the door closes again.
This is just some of the bugs i have tried. Tough i've restarted this game several times now, my best play has only been finishing my base, and starting to make research, when some stupid bug has happened.
If DoubleFine made this game 10 times more solid, i would definetely think it was a good game.
But unfortunately for everyone, this game is totally ruined by the crazy amount of bugs and poorly crafted tools in it.