At the later stages of the game, you unlock "advanced" rooms that have the same base functionality as earlier ones. I'm referring to the Nuclear Reactor, Garden, Water Purification Plant and Nuka Cola Bottler, that replace the functionality of the Power Generator, Diner, Water Treatment Plant.
At first glance, it seems like a good idea to (eventually) replace all your old production rooms with the new ones, once unlocked.
Are these advanced rooms strictly better than the earlier ones? If not, what are the downsides?