Yes, very very good performance.
Ran was the first Kurosawa's I saw, at the end of the 80s.
When old classic japanese movies were available here in DVD, it was good pleasure to see him again in many roles.
Although he only played one of the three chapters of Kwaidan, the story with him is very excellent.
"Black River" from Kobayashi is more modern (in story) but very excellent too!