Perky Pet names this feeder "Our Best," and in my opinion it is the Best. For the record, I have been using this feeder for almost forty years, with excellent results! It is a very high-quality feeder that can feed six hummers at once, and it has a 30 ounce capacity which allows me to fill it less frequently (although I sometimes have so many hummers they can empty one in a day). It also has a glass bottle. Please ... spend a bit more and buy only glass-bottled feeders for your hummers, don't waste your money on acrylic ones. Glass feeders are higher quality, they do not discolor, and they keep the nectar inside more cool and fresh for a longer period of time. Your hummers will thank you for it.