The video section here on scubaboard is meant for beginning hobbyists. Pro's and serious hobbyists tend to be on wetpixel forum.
Technology has evolved fast. Many have not kept up and are unaware of the quality being produced with inexpensive cameras and software. Good content is a great thing, but much of that is dependent on being in the right place at the right time or diving in great locations. Good editing skill goes a long, long way. A good editor can create a very entertaining video out of average content. What was considered decent 12 yrs. ago, pales in comparison to what is being done today by beginner hobbyists.
To the thread starter, go ahead and try the free software. It's free, so there is nothing to lose. If you want something with more capabilities, the under $100 software packages are pretty good.