DannyT - Thanks for sharing your model.

I also made a Hypershot render using their Kitchen HDRI. This is their low resolution version of the HDRI, so the background environment is not a sharp as it should be.

Using my quad-core PC, the "real time" image was instantaneous (and could not see a difference compared to the final render). I increased the quality settings quite a bit for the final render (not that it made any noticeable difference) and produced the attached render in 40 seconds. With default quality settings the final render took 6 seconds.

Ed
Marysville, WA