FYI seafoam

My car a 2000 Toyota Camry ran rough when I started it. After about 5-10 minutes after warming up the engine it would run fine. I checked the engine code. it gave me an engine misfire. I looked on the internet to solve the problem. I read about seafoam. I used seafoam in my Camry, it only costs $10. Now my engine does not run rough no more when I first start it. Also I notice that the car drives and accelerates better. I thought seafoam was gonna be some snake oil or something, but its not it really did work. Its been a month now since I've had this problem.