Yeah Ebert gave it half a star more than Star Trek V. Which says a lot in my opinion.
Though i like parts of TREK V the overall movie is disjointed and incomplete. Just a mess.
I would still personally rate the Shat's film higher than JJ's just because it has the real Captain Kirk and the Real Starship Enterprise. Real as in authentic in terms of fiction of course.
To me the end of Trek VI with the Captains log was a perfect way to end the classic trek series. Forget generations. Just like Indiana Jones riding off into the sunset in Last Crusade was the perfect ending.
Just like to me Return of the Jedi gave closure to the star wars saga. Sometimes less is more. Because you can ruin a good thing or in the words of Lucas "it is possible you can destroy these things"