Since I bought it for speed - and many people do, then getting poor quality would be a very good reason to return it even though I get the speed.
Unlike Garry, I get reasonable quality video and seldom use SVRT.; it is still faster than the 32 bit software that I use . By the way, that also has a fast render function built in and the ability to select to use the video card or the software to render.
Some people buy cars on styling, some on options, and some on speed but they all want quality in every aspect. !
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BoilerPlate: To posters who ask for help -- it is nice to thank the volunteers who try to answer your questions !
Anything I post unless stated with a reference is my personal opinion.