Oh yes, I've tried a couple of these...
Tend to agree with others that they don't look really good and are super uncomfortable. Think the extent to which somebody would like one may be how important it is to feel female vs. look female?
Like...part of the reason these never really worked for me is that I always thought that a cis woman would never wear one, and that made me more dysphoric.
Breast forms, on the other hand, are worn by women and in my experience at least, actually feel super comfortable and can look very realistic.
Could be though that technology has improved! If somebody created a prosthetic vagina that looked better and was more comfortable, I might change my mind. Good luck!