I own a 740 and rotovator, you do need a large hand to be able to use the clutch easily but the wife can do it, great bit of kit used end it to regularly turn over our 0.5 acre veg plot, when we took it on it was covered in trees and debri, it coped well but if the rotovator does hit something immovable it does send it skyward! I have also used it to fluff a very large area of play ground bark that had become compacted.
It's very economical with fuel, and I'm in the process of building a trailer for it to move stuff about the yard.