As for descriptions, I would still believe to add the values or perhaps even a description highlighting how efficient the reproduction is. (For instance, a "small mechanoid assistance during childbirth" for the weakest facility to something like "promotes the use of Genetics to drastically improve the reproduction and the fertility in this system" or something around these lines.)
The point would be to give the player an idea on how efficient these Cultural Centers are in improving the reproduction rates, so that he/she will decide whether to build another facility (with a better value) or not. Sadly, SE:IV keeps on saying that "You already have a facility in this system with similar abilities", even if this facility is outdated compared to the one you would like to build. And for obvious reasons, you cannot destroy your Cultural Centers to see their importance during an actual game.
(Except if you DO want a challenge that is)