5 STARS!!!! anyone that didn't get awesome results must be using this product wrong. First I used it on my Casio watch/stop watch that has a plastic crystal. It had deep scratches from gardening and beating the lense against just about everything. There were 2 deep scratches and many fine ones. I was going to throw it out so, instead I tried this. I polished for about 2 minutes and most of the scratches were gone. I put some more on and in 2 more minutes It looked like Brand New! What else can you ask for?used on pda and I-Pod. Worked perfectly. I have enough left over to polish many more things. Great Product.