I've owned Garrett and Whites, Coinmaster II and DFX. I didn't own the Garrett long before selling. The DFX was an expensive, bells-n-whistles machine that was good for shallow coins and jewelry, and I really don't care for visual numerical identification of targets.
I can't recommend either machines, as I now own Minelab Explorer, no going back. A used one will run around $500-$700 or so, with great resale value. The only negative I have, is that they are a bit heavy, and not that great on tiny gold items.
When I listen to LED ZEPPELIN...so do my neighbors...
Roll hunting since '77
Dirt fishing since '72