Never owned a cookshack, so I'm entirely speculating...
After jacking around with various smoking gadgets over the years, the Bradley fits my needs best. Total automation. I've grown too old to be staying up all night jack with temp control, feeding wood for smoke, etc. The Bradley does these things well.
It looks like the smokeshack models can do temp, but I have a hard time believing the they supply smoke fuel as well as the Bradley does.
Cookshack products look like they are of first-rate craftsmanship. I like that they're made in the US. And in my experience, anything from OK is bound to have excellent customer support behind it.
But with my Bradley - load up the tube with wood pucks, set the temp, come back and get your food when its done. Everytime! I like that...