Depends what you want to do with it, and more importantly...
...how much you are going to pay for it.
Even if it does what you want it to it could crap out at any moment. Is someone really trying to sell it? I wouldn't pay over $100 for it, and probably not more than $50. A computer that old...kind of amazing someone is trying to sell it.
It's honestly probably fairly worthless as far as monetary value is concerned.