The refurbished Lenovo ThinkCetre M77 is a very good computer. This was refurbished by Joy Systems which I have bought other refurbished machines from in the past. They do an excellent job of refurbishing. My only issue is that there was a dent in the end of the case when I received it. It doesn't affect the operation of the computer so I am still fine with the purchase. That is the only reason I rated a 4 instead of a 5.
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