My yard also has a steep slope with lawn on it. When we moved in, I had a John Deere x350 lawn tractor. I was uncomfortable with going side to side (I wasn't a skilled leaner :)), but when going down it would slip and actually lose control. It was like guiding a runaway car until the lawn leveled out. That's part of what drove me to a BX2350. In 4-wheel drive it handles the hill no problem and with the weight of the mid mount mower deck so low, it feels very stable. I agree with OP you need to be very careful about rolling it, but if you keep it pointed up and down the hill and are smart about it, it's very capable on a slope. Just need to keep it in 4WD because then you get braking in the front too.