Has it been out of the box long enough to validate that the adult versions of the embryos exhibit the traits that they're supposed to? Is it a
noticeable intelligence boost? For example, a standard deviation higher IQ as measured by Raven's Progressive Matrices, compared to siblings from un-screened embryos? I read enough about biotech and biohacking that I feel like I would have already come across reports if this really works, but maybe it's very recent.
I read Gwern's "Embryo Selection for Intelligence" a few years ago:
https://www.gwern.net/Embryo-selection
Near future possibilities seemed pretty limited based on that review, unless the reasoning was incorrect:
As median embryo count in IVF hovers around 5, the total gain from selection is small, and much of the gain is wasted by losses in the IVF process (the best embryo doesn’t survive storage, the second-best fails to implant, and so on). One of the key problems is that polygenic scores are the sum of many individual small genes’ effects and form a normal distribution, which is tightly clustered around a mean. A polygenic score is attempting to predict the net effect of thousands of genes which almost all cancel out, so even accurate identification of many relevant genes still yields an apparently unimpressive predictive power. The fact that traits are normally distributed also creates difficulties for selection: the further into the tail one wants to go, the larger the sample required to reach the next step—to put it another way, if you have 10 samples, it’s easy (a 1 in 10 probability) that your next random sample will be the largest sample yet, but if you have 100 samples, now the probability of an improvement is the much harder 1 in 100, and if you have 1000, it’s only 1 in 1000; and worse, if you luck out and there’s an improvement, the improvement is ever tinier. After taking into account existing PGSes, previously reported IVF process losses, costs, and so on, the implication that it is moderately profitable and can increase traits perhaps 0.1SD, rising somewhat over the next decade as PGSes continue to improve, but never exceeding, say, 0.5SD.