Stevens Model 73: Extractor Replacement/Issue and General Questions

I was just given a Stevens Model 73 and I had some questions since this is actually my first bolt-action gun. The extractor is missing. I understand it broke, the prior owner replaced it and then it broke again. Before I place my order for a new extractor, I was wondering if broken extractors were a common problem and if so, was there anything else I should replace at the same time? If not, any thoughts on why a new one broke (so I can maybe avoid breaking the one install)?

I wasn't concerned about the details since it was free, but is the Model 73 a good gun overall, how accurate are they generally and does it have any peculiarities?

Thanks!!