4.0 - I generally try to listen to albums in one sitting so I can understand them holistically. But with this album that approach felt like eating an elephant -it's a fucking HUGE record! OutKast come on full force in almost every song with hard beats and frenetically paced rhymes (see "Bombs Over Baghdad"). For a mild hip hop fan with limited exposure, I enjoyed it much more when I listened in smaller segments. There's no denying the bars that are spit with relentless fury. And there are so many great moments on here (e.g. how they include a few bars of the Wedding March at the end of "Ms. Jackson"). I even like most of the skits that help create a cohesive listening experience. My only real knock is with "Clappin' and Trappin'" - the beat is distractingly loud and busy.