I have an Arbor tech carver, used it for removing bark and sapwood from osage staves when I overloaded myself with a yard full of freshly cut logs.
It is not a precise cutting tool and has a very limited place in bow making. It makes a very rough cut, gouges out a crater in a heartbeat and was so aggressive I abandoned it and went back to my drawknife.
The tool is like a mini stump grinder and cuts like one. It is pretty expensive, you could buy a good used bandsaw for the same price.