Review: It's only $100, so don't expect much. It is made of cheap plastic. It only has 2 f-stop settings, f-11 and f22. The images tend to be pretty soft, and the focus is hard to get exactly on, and it shifts a little too easily.
I thought I was ordering their newer better model, but I miss read their web page and just got the deluxe package of the older version.
For the price, it is acceptable. It is not up to professional use, but it is fun and the lens is very light weight.
You can see the first few pictures here:
The sun had just set, and with just f-11 and f-22 as options, it was very hard to get good focus and hold the camera still enough, even at iso-1600.
More experiments likely during lunch.