I've been using the BioCleaner for a couple of years now and I have to say I LOVE THIS STUFF!!!!!!!!!!!!!
Kind of silly to get so excited about something like this, and I tried another similar product from one of Q's big cleaning guys, and didn't think it was anywhere near as good as the Bio Cleaner.
I use it on stainless steel (sink and pots and pans shine better than when new), glassware that has water spots, stains, and hard water build up, fiberglass shower and tubs.
I collect vintage Pyrex, and it cleans that old paint on the outside of the bowls without scratching or dulling the paint, and the white insides, it takes the utensil marks right off. Cleans all the residue and dark marks off of Corningware, and Corelle dishes too. I even have a set of Temp-tations Vintage Grace cream dishes that were showing utensil marks and it took the marks off those dishes, all without scratching (I use it on all my vintage Pfaltzgraff for utensil marks too).
A while back, I noticed that this product got some not so good reviews, and I think because it isn't a 'magic' paste, but requires some elbow grease to make it work. It isn't as simple as spread it on and done.
I stocked up on this, as at one time, they had some trouble keeping it in stock. I figured it would be like the Super Cloths and be gone someday.
I don't want to ever be without this stuff, as I use it to clean pots and pans daily.