I'm not to sure about ethinylestradiol, but in IMO which isn't much, I have found for me the progesterone has benefited my figure during my transition. Now that being said it does come with some side effects. I have become more emotional, I have more cravings for junk food, and I believe that it has made me a bit lethargic at times. I only take the pill once per day and I have to take it in the PM. That way the side effects are less intense.
It's funny that there are so many different opinions that you will get on this topic. Is progesterone worth it or not? I would say just trust your doctor. If you can't do that then find another one that you can trust. Honestly a lot of opinions that you will get on this topic will differ greatly. You and your doctor will be the judge ultimately if this working or right for you or not.
good luck