Blackwood will make for a heavy body, unless you're going to chamber it. I couldn't tell you the "true" tone characteristics, although It may resonate just like other woods
It is not regarded as "Ebony", however it is very dense wood. Depending on the sharpness of your tools, expect chips and tearouts... it has been used to make woodwind instruments on occasion such as clarinets, oboes and Highland pipes
blackwood for the body 
