Fitbit

I was wondering if I should get the fitbit. It looked awesome when I looked up what it was about and everything, but! I want to know what you all think. If you have one was it exactly what it is portraid as? Does it tend to have malfunctions or anything? On a scale of 1-10 (1 being the lowest and 10 being the highest) how would you rate it? I dont want to buy something that is 100$ and it not work very well. I want to buy something that is great quality. Thanks :)