I am sort of enjoying I5. It is fun and has something for everyone. Not every change (but alot are) are mutual swaps or vagina based which is good. And you hint at sexuality.
I also like it as you are slowly leading to doing something I wanted to do (and was aiming for in a story where a guy was changing people in his office) but got discouraged from when an addition went another way. (I knew I didn't have to go that way, but was still discouraged). A society where gender/sex based changes are common and old notions of gender and sexuality fall by the wayside. A non binary world where sexuality and gender means nothing. Where gender traits can mix and match in any way and no one cares what anyone has between their legs.