All feminized seeds are unstable to a degree and because of it you are more likely to get hermies from them. For years the best breeders did not make feminized seeds, many still do not. In the last few years some of the better breeders have made them, but not because they are good, but to regain their lost market share of all the people who think feminized seeds are actually true females seeds and and a better value and easier since they do not have to know how to sex their plants separate the males.
Other than with a small handful of breeders you will get higher quality genetics from those who deal only in regular seeds. The companies that deal only in feminized seeds, and those who are slowly moving in that direction, have lower quality genetics.
The singular redeeming value to feminized seeds is if someone just doesn't have enough room to grow out enough plants from regular seeds to be sure of ending up with enough females to cover their wishes or needs. But then there is the gamble that they still might not end up with enough plants by harvest because they might lose one or two because they are hermies, well, that or they keep them and settle for seedy pot.