Installation was relatively straightforward although the instructions neglected to show where to place the nuts that are encased in cylindrical pieces of plastic and it took us a while to figure it out (they snap into the black plastic pieces that the long side bolts go into -- it's hard to describe). The 360-degree flush is great so far and is very quiet. However, water from the tank continues to trickle into the bowl after the tank fills and the instructions don't give any troubleshooting tips.