How bad is it? It's extremely poorly made dogmatic propaganda.
Should you see it? No.
This was the pilot episode of a series that lasted years and had a change of casting of the lead character, played by Willie Aames in this episode. A wealthy man is miserable, but finds a Bible and has a conversion, leading him to fight evil - the idea is that he will pick up all the powers of the Bible as he progresses. The production values are execrable (though not as bad as "Clutch Cargo"), but this has a very fundamentalist evangelical bent that has offended most who have given it a terrible review. It apparently was popular in some households and aired for years. My thought is that kids generally hate Sunday School and parents generally hate teaching it, so sliding this into the DVD makes things easier for all involved and that's why this was made.