Hi Ian,
I have had a Clarke 6″ grinder for many years an dit has served me well however, I have recently acquired a Creusen 8″ grinder and cannot believe the difference. I really thought the Clarke was quite a smooth running machine, and for the price it is!. That said, the Creusen is like moving up from a Ford to a Jag, smoothness is in the eye of the beholder .
My Clarke has now been passed o to my Son-in-Law and I now enjoy the luxury of a precision machine.
All said, I was able to grind lathe tools with sufficient accuracy to produce acceptable results with the Clarke grinder, providing the wheels were adequately dressed.
So it all depends on your requirements. Record are a well respected tool manufacturer. I have one of their woodwrking lathes and have no complaints.
It really comes down to a decision on price and expectation.
Sorry if I am, sitting on the fence but so may posts on this forum end up recommending the most expensive solution when the requirement is nowhere near that level of expectation.