Disappointed 303 Products have never let me down….until now. I have used the 303 vinyl protectant exclusively on the T-top of my boat, for years. This year, it was extra dirty when I was preparing to treat it, so I bought this 303 spot remover to try out.I know it says “kitchen” on the description, but I am unfamiliar with what a kitchen spot would even entail. I bought it thinking a greasy or baked-on stain was probably as difficult to remove as the sun-baked dirt on the top that I was trying to clean. So I gave it several good shots, some soak time, and ample scrubbing…..repeatedly.Well….It was actually worthless. It had no affect at all on the stains. Thinking then that this dirt was just “too tough a stain”, (that no normal cleaner could remove) I used a bleach/soap combination (which worked) and saved the 303 for “other” applications.However, I have not found anything since – that the 303 spot remover “alone” will remove, (that ANY other general purpose soap-cleaner won’t do as good on – or better)!So I will stay with the 303 vinyl protectant, but for a “spot remover” – look elsewhere.