better than new.
After a while you'll learn to assume he not only fixed whatever it is but studied it in the process and now knows more about it than it's creator.
figuring out just what driver is used on these clusters for the speedo and tach took hours, if not days of scanning through period-correct datasheets, matching up sample circuits, eventually finding a match, finding superseded versions, finding superseded versions to those, repeat a couple more times, finally find parts that are actually still available, buy a stock of them for the inevitable failure of them in the future....
then repeat the process for the odometer driver.
and then the IC that controls the check gauges and low fuel lights(that one was a lucky guess though and took a whole 5 minutes). and for the TGP specific clusters, the IC that runs the boost gauge(another fairly lucky break).
then mapping out every single component on all of the PCB revisions I've come across, determining and assigning a function for the more critical ones.... I mean, I might know a thing or two about them. I've got spreadsheets, images and text documents that are all generated from my work that an electronic repair shop would have had to pay $$$$ for back when these were relevant.