Have not et used these Discs so can't really comment on Quality at this time, but all reviews were good.
These are probably the best CD-Rs currently on the market and I have used hundreds of them. They have extremely low C1 error rates. I have never had one with CU errors and only two with C2 errors and I use them for producing masters for CD pressing plants. The "Printable Plus" surface gives superb results and, while not 100% waterproof, is more water resistant than anything else I have tried. The only down-side is that some slot-loading mechanisms have problems loading and ejecting them.
Would be 5 star but they do have problems with some slot-loading mechanisms.