Mower Recommendation

Hello Everyone,

I'm interested in purchasing a riding mower, but I need some advice. I have about 1.6+ acres to mow, but I have some nasty hills (some are 60+ degrees). I use to have someone come cut it on a zero turn mower, but I think it's a commercial model. I'm looking for a recommendation of a kind/brand/model of mower that could handle my acreage and hills...

Any help/advice would be appreciated!
Thanks,
Todd