I bought five of the Collins Bee Feeders originally and then more. I felt led to give a review here.
I love them! 2 1/2 qts of feeding. I have a couple of hives that actually have 2 on them right now. The rest have just one. Easy to fill and place on the hive. No spoiling of sugar water and no robbing problems. They go right on the top of the frames inside an empty medium super. It doesn't really bother me that I have to suit up to fill them sometimes. I'll suit up for 2 1/2 qts. That's 1 1/2 less trips to the hives!
As they say in their advertisement, you will be surprised at how easy their concept is. They really have taken the bucket feeders and made them better.
I'll be ordering more for spring time!