What Keith said!
Depends on your definition of working. I think my Yashica wore the "Pad of death" off, so it is working... at one shutter speed only! Still looks the way I first got it.😀
On a serious note though, if you are thinking of getting something which looks mint but not sure whether it's working or not, just ask the seller. And if he claims that he doesn't know how to operate it, but the price is okay, just jump on it! Worst case scenario, you will have extra spare parts that's all!
Now to get that POD repaired...