I've done quite well using PD and chroma-key, the trick is in the even lighting, no wrinkles in the backdrop, and of course proper clothing/color choices.
I suspect video graphics cards also may play a small role, but there is no substitute for getting the shot correct.
Practice practice practice.
HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
Nvidia GTX 960(4GB)/16GB DDR3/
Canon Vixia HV30/HF-M40/HF-M41/HF-G20/Olympus E-PL5.
Tape capture using 6 VCR, TBC-1000, Elite BVP4+, Sony D8 camcorder with TBC.
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