I rented this movie from Netflix. The DVD shows it in letterbox format with bright white English subtitles in the lower black space. The quality of the print that was used to make the disc is good for outdoor action, but the action in two long night scenes is so dark as to be mostly invisible.
Obviously a lot of people love this film, but I'd give it only 7 out of 10 because it's way too long, over 3 hours. It was shown in theaters in the early 70's as Part I and Part II on separate days, which would be okay except the climactic fight in the bamboo forest which ends Part I is repeated in entirety in Part II. And there are other sequences which could be trimmed back. Towards the beginning, for example, Scholar Ku makes a long, long annoying nocturnal investigation of the spooky old mansion where he lives with his mother, finding nothing. Because the print is so dark, we see nothing as well. Again, in Part II, after the heroes have tackled the evil forces of the Eastern Chamber (a never-explained reference to some part of the Imperial Palace, I suppose), Scholar Ku wanders around the battle site laughing humorlessly over his own cleverness in the ways he spooked the Imperial guard force that came to attack. A little of this stuff goes a long way.
Nonetheless, it's a good Netflix rental. I particularly enjoyed seeing Pai Ying in a heroic role as Gen. Shih, and hawk-faced Miao Tien as the evil Commandant's lieutenant. It was also interesting to see 1970's Taiwanese hero actor Tien Peng (often billed as "Roc" Tien) as a handsome official of intermediate strength and skill working for the evil Eastern Chamber people. And I loved Ku's mother.
Two other people deserve honorable mention. The Chinese title "Hsia Nü" means "gallant lady", according to the subtitles, but lead actress Hsü Feng is hard to warm up to, and usually seems off-putting rather than gallant. She never smiles in this film or shows any emotional content when she fights.
The other interesting person is Chiao Hu (often billed as Roy Chiao), who plays the Buddhist monk that injects the Touch of Zen. Chiao was always a likable actor, but he too never smiles or seems like anything but a chilly person here. In both cases, however, their demeanor is perfectly appropriate to the roles, so I didn't mind that.
And was that Sammo Hung in a bit part, supporting the evil general Hsü in the final struggles?