Well its been and gone and I tried it in my system. I'm running fairly old gear - chrome 250s, chrome hicap, chrome 32.5 etc. I noticed a small difference which I would consider an improvement. I'd liken listening afterwards compared to before as rhe difference between a plate washed in a dishwasher compared to one washed by hand. You know machine cleaned is just cleaner! I don't think I'd buy one though.

Bob