Some friends of mine used that method because they had trouble conceiving naturally and the mom's window was shutting. There was no known reason. He was fertile and she was fertile and they were trying like mad to make it happen. It was quite expensive. It cost them around $30K but that was over a decade ago so not sure if it is cheaper or more expensive than today. I recall him saying the shot they had to give her in conjunction with the implanting their embryo alone was $5K, so if it didn't work they might not be able to afford a second attempt. Offered to let them use my credit card if it didn't, but thank god it did because I didn't really want them using my credit card. I was just being polite.
Talked to a man I know professionally recently who has a new born and they did it too but with a donor embryo so I assumed he was the one with the fertility issue. I don't know him well enough to feel comfortable asking.