rontarrant
You've got me curious, too. 
Ron, it was my curiosity that led me to try a set, and also to see if anyone else had used this brand.
I've read a few indifferent reports of other coated strings, but the spiel on the DR packet seems to address the more commonplace criticisms of them.
Mind you, I don't mind experimenting with a set when they're on offer at £4.99 (CAN$9.22) but maybe not so keen at the RRP of £11.99 (CAN$22.15)!