The half feeders are really nice in that they can be filled with syrup without releasing bees (Great for night time feeding with a red LED), you can add extra fondant during a cold day in the winter without exposing the top of the hive to the cold, and they are large enough to each hold a little over a day's worth of syrup for even my strongest hives but not too bulky to store extras.
If you have 1 or two 8 frame hives sitting around like me, you can use a 10 frame half feeder and the 7 frame nuc half feeder together to make a feeder set for an 8 frame hive.
I bought extras to use on my pending splits in 5 frame wooden nucs this spring as well as to avoid removing fondant from the feeders that I had filled with fondant this fall, but not needed by the bees because the apimaye insulated hives are so awesome.
I keep an empty deep super over my half feeders to use as a frame holder while inspecting hives and for the fall/winter I filled that empty super with a mesh laundry bag filled with styrofoam packing peanuts that allowed the bees to take the syrup from this feeder longer in the fall. And according to my govee bluetooth thermometer the fondant filled feeders stayed warm from the heat rising off the hive while still allowing moisture to vent off rather than condense.
One negative is that you really do need to keep your hive level to maximize syrup capacity, but at least your syrup acts as a level, so you don't need to carry another tool...So is that really a negative?
