I don't think the Japanese voices were that goofy, aside from Nozawa's overly high pitched screams, the Babidi voice pre-Kai and Hiromi Tsuru's... uh, rather lackluster acting, but the original Funi VA for Bulma was way worse.
And fuck Sabat, honestly. He did a good job as Vegeta on Namek, but him voicing approximately 50% of the cast was absolute garbage on par with the faggot voices of #19, #16 and Linda Young Freeza. Especially when his main way of differentiating between characters was smoking craploads of cuban cigars (original Z Piccolo, sometimes Vegeta) and sounding like a dribbling retard (e.g. Reacoom, the evil dragons).
Despite that, I like most of Funimation's voices nowadays and the Japanese cast has gotten pretty old (as seen with old man King Kai), so I'm down for watching Funi if they start at U6 instead of going through the tired 28 episodes of movie rehashing.