Flail Mower Caroni Flail Mower: any experience

[IslandTractor]

I am considering using a flail mower rather than a finish mower to maintain about 4 acres of field and lawn. The area has already been bush hogged. The Caroni 60" flail is much less expensive (<$1500 vs 4000) than other flail mowers which is confusing. Anyone have any experience with it?