Can I remove pieces to clean them?

Most doors can be removed if you need to take them down to clean them.  Frameless cabinets have a mechanism on the back of the cabinet-end of the hinge that releases the door and hinge from a mounting plate.  Framed cabinets do not have this mechanism and should not be removed.  They can be adjusted with a screwdriver, if necessary.

Shelves can be lifted out, and the shelf holders can be moved to adjust the shelves.

Drawers can be removed by grabbing them on either side and pinching a mechanism that attaches the drawers to the slides.  Set the drawer back down, a little farther forward, and pull the slides forward until they click back in.