I bought two of these for my two bathrooms 6 years ago. They have aged well. Low flow and sleek one-piece design are good. Flushing power is generally sufficient, but flushes are noisy! The space between the tank and the seat mounting holes is too tight for my Biobidet toilet seat--had to force it to fit, and the seat sticks out by about an inch and a half from the front of the toilet bowl. I will probably replace one toilet so that fits my bidet toilet seat better.