I would certainly experiment with having a swapped body, and at least try to use it to get around menstruation.

Might wind up spending a lot of time there. Boyfriend would do the same and reverse. How much would likely depend on how well or poorly androgens and estrogens interacted with our mental health, and how attached we were to the genders everyone currently knows us as.

If androgyne or hermaphrodite's an option certainly try that out too. Being able to kick sex hormones to the curve without negatively impacting health, or gaining the benefits of both and a body type that appeals to me? Yes, this certainly calls for experimentation.

I don't know how often I'd change once I'd figured out what I was most comfortable in. Suspect my gender identity and preferred bodies would be somewhat in conflict, so potentially often.