Tile based particle rendering

Hi, Tile based renderers are quite popular nowadays, like tiled deferred, forward+ and clustered renderers. There is a presentation about GPU based particle systems from AMD. What particularly interest me is the tile based rendering part. The basic idea is, that leave the rasterization pipeline when rendering billboards and do it in a compute shader instead, much like Forward+. You determine tile frustums, cull particles, sort front to back, then render them until the accumulated alpha value is below 1. The performance results at the end of the slides seems promising. Has anyone ever implemented this? Was it a success, is it worth doing? The front to back rendering is the most interesting part in my opinion, because overdraw can be eliminated for alpha blending. The demo is sadly no longer available..