What?
To me, SVG is one of those terrific ideas that few people actually seem to use. I can think of all kinds of uses for displaying vector graphics, all of them pretty specialized: CAD, architecture, scientific visualization, maps, und so weiter. It's there on modern browsers if anybody wants to use it, yet I don't think I've seen any real-life applications, only pretty demos.
My answer is, therefore: No experience, just the opinion that what you're going to do will be cool, so go with SVG, my son, and bitmap no more.