Hi C.-
I had the Novasure uterine ablation a couple of years ago (I was 37).... don't know if that's similiar to the thermachoice or not.
Anyway, it was one of the best decisions I've ever made. My periods used to be 7-9 days with heaving bleeding for 3-4 of those. It got worse after my third child. Now I have very light bleeding for only a couple of days, sometimes 3. Very light.... I usually only use a pantiliner now.
The procedure was quite easy... I did have a couple of days of cramping afterwards which was uncomfortable, but really not a lot more than my cramping that used to come with my regular periods!
I hope you have a great experience and that this really helps improve your life- it did mine!!
P.S. my terrible symptoms of moodiness, cramping, bloating, etc. also diminished GREATLY!!!