Product review (5 stars): Yes!  It was that easy.
Nothing worse than power surges blowing your freezer.  This electronic part was acting funky.  A google search showed us that this part acts like a computer to control the unit.  It also showed that by sliding a putty knife under the edge it would just pop out as it is a plug in part.  The back of the part had the part name and number clearly marked which made it easy to find the part.  The part is a Frigidaire part but our freezer is a Crosley.  Nice to have info like that.  The part was relatively inexpensive, as was the shipping.  As a result, in a few days we had the part, unplugged the old one and plugged in the new one.  Problem solved and I get to feel like a hero (even though she was the one that took care of the on-line stuff for me so I reckon we are a team of heroes to each other).  Let the freezer get cold again to confirm that was all we needed and then reloaded it.  Bottom line, it is a simple plug in part.  Anyone can fix it.  I hope I never have to again; But if I do, I know for sure what to do.