Isn't it beautiful? You know you're getting old and tame when you get excited over a toilet purchase. However, in my defense, it is a really cool crapper. This is what's called a "dual flush" unit. Basically, it has two different water usage levels: 1.6 gallons for solid waste and 1.05 gallons for liquid waste. In case you didn't follow, solid waste is poo-poo and liquid waste is pee-pee.
I don't know who came up with this thing, but they spend way too much time in the bathroom. How did they figure out how much water is needed to clear pee? I figure it had to be a guy standing in the bathroom with a case of beer repeatedly pissing, flushing, then bending the rod in the tank to find out the "break point" for when the pee didn't flush. I want that job.