I know of noone that really hates it. It's a sturdy 1st season episode. The make-up is hilarious now but it's not that bad tested on the era and I actually think Rohner did well. OK, it's all 80s daytime TV acting but I think he hits his marks.
I always think it was a pity that if they were going to have a geriatric Admiral, they didn't make him Admiral Garrovick (from TOS). It would be an elegant, understated way to connect to TOS without that angle smothering or hijacking the episode.