Probably a great machine, but that old girl appears to has seen a lot of use in a production shop for some years and likely seen thousands of parts cross that table. The machine also looks to me like it spent quite some time decommissioned and in storage. That said, such a machine is probably still capable of doing alot of good work with a high degree of accuracy and holding tight tolerances.
It was likely taken out of service in a high volume shop and replaced with a new machine that could produce more parts faster. Or, perhaps while the machine still did accurate work it was requiring more frequent down time for maintenance and repairs which became unacceptable in a high volume production shop. Not to mention that the machine had likely been in service long enough that it had paid for itself on the books and depreciated enough to justify its retirement and replacement.
In a less high volume shop I bet that guy will get a lot of use from it and make great use of it.