The downside is that it does not have zoom and you have to find it the place depending on the size of your screen (easier if you have a white wall, it's not my case)
I prefer to keep a little image trapezoid (it is light) than the correct duty and lose image quality (blurred). Works with a USB key and MKV file, and the image is superb BLURAY (We see the grain of the fabric if one pays attention but this is the first prize too so you forget it)
I am completely satisfied with the product that works for a little over 2 months without problems.
My child enjoys the big screen, movie night when you want! Go for your first projector !!
