The interior door handle on my half doors (which I've only had for 3 weeks) decided to stop working. Took the door apart to fix the little plastic clip that attaches the handle to the bar (which goes to the latch). Pretty easy job. Bit of a pain in the neck to get the plastic clip to go in right, but not horrible. I would however recommend not doing it with the door laying on diamond plate. Scratched up the paint, but I don't really care that much...