Was a bit hard to install and unfortunately our supply line came up right at the back left-hand corner of the toilet so what should have been a simple install ended up resulting in us having to chip away at brand new tile we put down in order to move the supply line coming through the floor. Nowhere in the description the specifications or the measurements given was that noted. I do love the toilet I would definitely buy it again knowing what I know now it would be easier the second time around. I'm sure nobody else probably had a problem with the toilet seat but it took me well. let's just say a very long time to get the toilet seat correct. Hours instead of minutes because the bolts and washers seemed a bit too small for the whole that it is supposed to go through.