I have been with a FTM. I was not looking for it she found me on a dating app. As I was openly bi on the app. She had been on hormones and well on they way. Lived as female for at least a year, I think longer.
We had fun. She just got out of a relationship, and I am married and open about the fact that I am not looking for a partner we never intended it to be a long term thing.
Overall I enjoyed the mix of female touch, boobs ect. with a dick. I would do it again FTM or MTF just have to have a connection, but its not a fetish for me.
For us it ended when she found out that she could make a killing charging for dates and I was out, just not my thing.
My two cents go for it, you never know.