Thanks fellas,
I didn't think it would be too good for heavy work but I'm not doing any heavy work currently. About one inch bar stock is the largest I've worked with. The most hammering it would have to absorb is maybe some fulluring, light twisting, and filing small pieces in the vise. The stump I have isn't very stable for twisting. I was thinking about sinking it into the ground but that makes it stationary and the landlord would rather it not be permanent but able to be packed up.
Pnut.