Oh, after reading more responses, now I'm thrilled I got it! I never really looked at it before and was just looking for something under $30 to order so I could get the free shipping!I think I made an excellent choice!
You're going to love it. I have the exact one in the picture you posted (crimson/silver). I keep my house keys on it, and also attach my car keys to it with a carabiner so that I can take them off if I'm not using my car.
I hook it onto my belt loop sometimes, but I mostly use it to attach my keys to my Carly since she doesn't have an outside pocket. I clip the fob to the strap loop at the front of the bag and have them dangling down into the bag so that I can grab them easily without even reaching into my bag or opening it up.