I mowed my lawn once with it. It will take some getting used to since it is totally different from my other one. It saved me a little time, but I was so awkward with it the first time, I won't be able to judge how much time it saves until I can handle it better. One thing I noticed is that it will slide sideways on inclines. I don't have any dangerous areas, but I do have a few slightly inclined areas, and I don't like that, but I'll adjust. I'm fairly certain I will like it once I adjust.
My brother bought a 60" zero-turn Gravely with heavy-duty deck.