The uncut fandub has a runtime of nearly exactly 90 min, which means Garringo has a theatrical runtime of 94 min.
It is a good SW, albeit it had the potential for more, as already had been mentioned in the above posts. The 2 leads are better than usual, but again the film would have benefited from more variable actors for these roles.
Some of the minor characters are also a bit old fashioned, but generally this film has a good SW feeling with a fine score.
And it contains one of the best cuts of every SW. This cut connects the first scenes set in the youth of the PLL character with the rest of the film, by jumping into the present of the film's story. And it is cut into a movement, which is pretty well done and shows the child practising shooting and then the adult killing a group of soldiers. The 2nd part of this scene, directly after the cut, can be seen in Silence's signature (albeit a bit small).