The game is really well made, but definitely not welcoming to every type of player ^^ (wish if 100% ok, the best games are not made for the crowd).
I did feel like the countdown was not really used in the gameplay, except to put pressure on the player. Could have been nice to be able to interact/hack it with some specific mission/goals, maybe? Just an idea like that ^^
Well done for a very polished and creative game!