They are loud, attention getting and several of my riding buddies have them and love em. Stebel has some neat videos of the product in use and they're a real hoot to watch . . . check their web-site.
Wildwolf, I bought the Kisan SM-35V, my bike didn't have self cancelling turn signals so this product will eliminate one bad habit I developed of forgetting to turn the signals off after completing the turn. I had previously installed the Radiantz Dogeyes from Custom Dynamics (dual color led cluster with smoke lenses) on rear turn signals which gave me running lites, brake and turn signals, so combining that mod with the Kisan I will have 4-way flash capabilities and pulsating brake lites on the rear. I like the added visibility all these mods gave me.