Built solid.. instructions were wrong had screws pointed to wrong holes early in but u literally couldn’t make it work the way they had it and it was early on.  Other than that the cross member that goes behind toilet was too low so had to be removed to place unit behind toilet after build then put out in place due to water line height.  Also due to height of toilet the lid to the water reserve had to come off and be moved forward due to the unit not being high enough to clear lid on back of toilet