Keith:
I ended up buying the larger Cyclone Rake a year ago; at the time, no one here seemed to have much experience with them. I've been quite satisfied with it (my wife feels it's the best piece of equipment we've ever bought). Various details:
We've ended up switching to a John Deere GT235 garden tractor for mowing, and use the Cyclone Rake attached to it, rather than to our compact Ford 1220. When I first talked to the Cyclone Rake salesperson, they didn't think it would work with a compact tractor; in fact, they didn't know what "compact tractors" or "3-point hitches" were. While picking the unit up at the factory, I discovered they do have an adapter which would mount it to (some) drawbars; ask for a "Kubota adapter." The rigid attachment of the Cyclone Rake to the rear of the tractor (as opposed to the single-point trailer hitch the Trak-Vac appeared to use) is one of the unit's biggest advantages; it greatly simplifies maneuvering when backing up, especially when dumping the unit.
We use the vacuum pickup hose (for planting beds and stone walls) roughly 50% of the time, and the mower deck attachment (for lawn areas) the other 50%. While you can collect some smaller sticks with the mower, they suggest not vacuuming sticks with the hose attachment. As noted in an earlier post, the Cyclone Rake has a heavy-duty plastic impeller, which will shred some items, but isn't going to do the work of a flail assembly. The mower attachment is very effective on thick lawn areas, but doesn't work as well on paved or other smooth surfaces, where leaves tend to blow out from the mower deck before the vacuum can capture them.
Several parts on our Cyclone Rake were damaged when we received it, but the factory was very responsive and sent replacements within 2-3 days.
You should note that the price starts climbing if you opt for the heavier duty hoses, as well as accessories like the vacuum pickup hose, exhaust discharge hose, hose carrier rack, etc. (in total, our unit ended up closer to $2000).
Feel free to email me if you need additional information. Overall, we've been happy with our Cyclone Rake and would buy it again.
Andy