I forget how many votes I got, but I didn't promote it anywhere but this thread, so it wasn't a ton. My percentages after 3 days were a bit below the average for features, but they went up afterwards, and ended up being higher than average among buyers and VIPs.
I don't check Heartsy too often, but I've never seen a supply shop featured. Maybe they're just not interested in that category? By the way, congrats on 3,000+ sales!