Congrats Sarah! Sounds like everything went well with no complications.
I have a suggestion about sitting. I too, had trouble getting comfortable on the life preserver. I found it more comfortable to sit on one leg tucked underneath. (This information was passed onto me, btw, from another Brassard gal). It relieved just enough pressure where I could get through eating periods. I still had to shift, but it worked better than the donut.
Also, when you get the stent taken out, it will be easier as well.
Enjoy the time off!