Same here, I heard they got Cindy Morrow and Amy K. Rogers too, but there's something about the artstyle that's such a turnoff. The little bit they've shown in commercials and previews don't look so great either. :/
Belly Bros sounds way too weird, if the show took off and I became a fan, I'd rather be a Care Dude, but that's not exactly the best alternative.
The show's producer,
Sarah Finn, worked on a couple of Strawberry Shortcake and Care Bears projects recently, which doesn't immediately inspire confidence, but then I saw the voice talent lists, and see that she's worked with
Ashleigh Ball (Applejack / Rainbow Dash)
Kathleen Barr (Queen Chrysalis / Trixie)
Garry Chalk (Optimus Primal from Beast Wars)
Shannon Chan-Kent (Pinkie's singing voice)
Ian James Corlett (Goku from DBZ)
Richard Ian Cox (Inuyasha from Inuyasha)
Paul Dobson (Naraku from Inuyasha / Matrix from Reboot)
Andrea Libman (Pinkie Pie)
Britt McKillip (Princess Cadence)
Scott McNeil (Piccolo from DBZ)
Tracey Moore (Sailor Moon #1)
Kelly Sheridan (Sango from Inuyasha / Hitomi from Escaflowne)
Tabitha St. Germain (Rarity / Luna)
Sam Vincent (Aerrow from Storm Hawks / Athrun from Gundam Seed)
among others. So if nothing else, Care Bears should have good voice acting.