our yard has a similar machine to this. It's fabulous. really makes a clean job of the field, also picks up any divets or loose bits of soil/**** lying about. very easy to use, especially with a quad, but most of us use our own 4x4's or the yard's old car.
got a pooh vaccum for sale. a trafalgar one. does a good job, towed by quad, normal ball hitch (i think). am getting a bigger one!! works well very clean and tidy. pm if interested.