I LOVE this tool. When working with dense, compacted soils, digging with a shovel can be a real pain in the ass. I discovered the Radius Digging fork early on when working at my parents garden (very dense heavy soil) and it save me lots of agony and strain on my body.
This digging fork makes loosening compacted, heavy soils easy! Once the soil is loose, you can easily dig it out with a shovel. I dug a 4 foot deep pond in my parents garden with this thing, which would have been impossible with anything else, including a pick axe.
It's also great for digging up crabgrasses, bulbs and root vegetables. Also works amazingly well for mixing potting soil or integrating compost into soil.
This thing lasts forever too! And the manufacturer provide a fantastic Lifetime Warranty.