Lightworks free compared to paid Programs

I want to get more into video editing for action sports edits (skating, dh skiing/snowboarding, biking, etc…) and would like to know where the free version of lightworks stands compared to other, more professional paid programs. I was looking at powerdirector ultimate 12 as it recieves decent reviews and is currently on sale for $70 (I know it goes on sale all the time). But, in line with the main question, what sub $150 editing program would be worth purchasing even though I have lightworks?