I was looking for this kind of product for a very long time. It is an excellent product. I thought the base might be very light and I put my mobile it might not work as this is for webcam as they advertised. But the base is very heavy and you can attach a big mobile on it. It is handy for me for tutorial and video reviews.
The arm length is a little small but not that bad. The best thing about is, It is portable. You can take it anywhere. Overall I am very happy with it.