I have the top feeders from Dadants. Brown with a white pc that goes along the sides.
I am now using front feeders( cheapies)..Hard to beat a 3.00 feeder...I changed because of the roaches and the fact that, like Robo said, the syrup doesnt get nasty. The jars do take more time to use, but the syrup ,so far, is always clean till it is all eaten. Some of my hives are now eating a jar a day, and some hives eat a jar every 3 days.
I still like the top feeders I have though, I'm just not using them. Maybe in spring and Fall, when it cools off.