Bad Bad, not living up to its reputation

The product and the reviews promise much, but it quickly finds its limits.
I tried several video files:
-a big BDRip 30GB: saturation cache (stuttering)
-a 2GB file (BDRip) saccades (sound and video), jumping frames every 5 seconds
-another smaller file: Unable to read file
-some files going well, but ultimately fairly

I probably unlucky, maybe my files use codecs not fully supported, but in any case it is clear that the product is VERY far from 100% compatibility.

In short, I do not recommend, I will return the product (postage in my care and more ...).
Who knows if one day the fate raspberry version 3, it might change the situation.