Review: Chi Silk Infusion

I bought Chi Silk infusion about a month ago. I got it for $13.50USD at a local beauty supply store. I thought it was a little expensive for just a little 2oz bottle of it. I heard rave reviews on numerous beauty sites, and on youtube. Folica.com says, "CHI Silk Infusion helps strengthen your hair, providing incredible softness, manageability and shine without any build-up. Alcohol free, enriched with pure silk and wheat and soy proteins." It is supposed to strengthen your hair if you use a lot of heat on your hair. Having curly hair I do put a lot of heat on my hair. I either blow dry it curly, or I straighten it.
Unfortunately, it didn't work out so well for me. It left my hair having this weird film on it. I at first used a dime size amount and thought maybe that was too much. So I applied a pea size amount, and it still left my hair that way. Then I heard to apply it when your hair is dry. I was using it when my hair is wet, because I figured it is supposed to strengthen the hair and then protect it from heat, and so I should put it in before I blow dry my hair. After hearing to put it in dry, I tried that and it still left my hair feeling like it had this weird film on it. It also weighted it down, and made my hair look kind of greasy. Again, I tried not using that much at all and it still did this. I really wanted to love this product, because I had heard so many great reviews on it. I thought maybe I was doing it wrong, and I looked up information on it, and I don't think I am. I don't know why it leaves my hair feeling this way but it does.