Wasn't that bad, actually
Sure, it's far from being a masterpiece, but it does have some great moments: Blind Melon Chittlin', Herbie and Ralph, the Punk and the Old Man. Some of the other skits weren't as good, like the Dope-a-thon (did Cheech have to howl at the end of each sentence?) and The Harder They Fall parody (Chong isn't very good as a straight man). But to me Still Smokin' wasn't that bad.
The Corsican Brothers, on the other hand . . .