Canada

Anyone have experience with the Moto C370g, Rogers sent me an offer to trade in my C332/3 for one. I'm concerned about the battery being as bad as before. Also how about the polyphonic tones, the ones for my C333 were pretty crappy. I'm still not to sure if I want to re-up my contract though, Rogers has screwed me before. Any replies are appreciated. One more thing, they list it as a power class 4 phone, does anyone know what this means?