I've told my mother and a few close friends of my decision, and, at least on the surface, they've all been super supportive. My mom had the sleeve done 5 years ago and it very pleased with it, and another of my friends is going through the process right now as well (we call ourselves the "No Tummy Buddies" lol!). The two others I've told have said they are excited for me and hoping the process goes smoothly.
I'm not planning on telling very many people, only those I trust and I spend a lot of time with so they aren't surprised by the change...I'm not ashamed, but I don't need unnecessary opinions from people who don't matter in my day-to-day life either.