I tried it long ago. I still use some of George's old cleaner, but did not like the UltraBit.
The best product I have tried is Lloyd Walker's Ultra-Vivid. But since I now put my cds on a music server and find no difference in doing so between cleaned and uncleaned discs, I only clean new sacds. I do find massive differences in ripping between AVM spray painted cds and non-spray painted discs and when using the Millennium cd mat especially with both. FIM will soon have UltraDiscs, which will have the AVM paint plus other treatments.
The best product I have tried is Lloyd Walker's Ultra-Vivid. But since I now put my cds on a music server and find no difference in doing so between cleaned and uncleaned discs, I only clean new sacds. I do find massive differences in ripping between AVM spray painted cds and non-spray painted discs and when using the Millennium cd mat especially with both. FIM will soon have UltraDiscs, which will have the AVM paint plus other treatments.