More than likely, sure. On a simple visual inspection, the thing that should set off a red flag is cold lap (lack of fusion), inconsistent deposition (gaps, holes, thin/thick spots), and porosity.
It might be a good idea to get some pieces and mock up the same type of weld and position to find a good setting, then beat them to death to see if the actual weld or parent metal breaks. If the weld breaks=bad. If parent metal breaks=good.