I think it's a terrific buy at 180 bucks!
Don't think it was a top of the line bike as the seller is noting, but at least mid level model or a bit higher.
Really depends what tubing was used on the framesef.
The Shimano 600 group installed on it, that could be all original, should be a solid, reliable performer.
Hopefully it is as in good condition as it looks in the pics.