Excellent product.  Recommendation to tell folks that cupboard doors or hinges might interfere with shelf if they extend inside the opening.  The door interference is obvious, however the hinge interference will depend on the height of the hinge mount versus the height of the shelf unit.  Any needed modifications will add to installation time significantly.  Installation instructions are excellent.  One recommendation is that if the door does extend into the opening when opened, that the unit be installed as far as possible in the direction opposite the door mount.  This worked well for a single-door cupboard - does not apply for a double-door cupboard.  Thanks for a great product!