I have been a long time user of Poorboy's Bold n Bright tire dressing and is still one of my favorite dressings. However, I have recently replaced it with Optimum Opti-Bond and don't see me going back to PB BnB. I can't find any negative things to say about it. It's so easy to apply and my wheels have that dark sheen look to them for an entire week until I have to wash my car. It looks like it can go longer but there's no sense in it since I do weekly washes on my cars. I've also tried Optimum Tire Shine and was impressed by it as well, but I found PB BnB had a slight edge over it after a week. Opti-Bond is a whole new beast however. I ordered a 32oz bottle a few weeks ago and just recently ordered a gallon of it. Thank you, Optimum, for another great product. I am noticing more Optimum products in my collection.