Sheet metal combination machines

[chevyIIpost]

I am looking for knowlegeable feed back on three in one sheet metal, slip roll, brake, and shear machines as sold by eastwood, grizzly or others. This is for home shop use on personal projects. I understand that the real stuff is much better but my square footage is as limited as my budget. Any one that has one or has used one of these machines please provide your opinion. I have not been able to touch, feel or use one of these "universal" units and am wondering if it is functional or a waste of money.