Of course you wouldn't expect troubles right away. Parts availability, as well as accessibility and things like picking the thing up for service are things you might not appreciate till needed.
I think most quality machines are dependable. Just a Ford Chevy thing. Zero turns are much faster, and fairly compact. I always liked front mounts, but for a homeowner it might be a bit much.
Toro makes good products, JD, Woods, Dixon, I have little faith in Cub Cadet these days.